> This is not medical advice, diagnosis or treatment. It does not replace a consultation with a physician. If symptoms worry you, seek medical care; in an emergency, contact emergency services. Everything below is a historical symbolic language, not a clinical procedure.
Decumbiture is the chart of the moment a person took to bed, first felt distinctly unwell, or had to stop ordinary life because of illness. The Latin decumbere means "to lie down"; the name comes from that act. Unlike a natal chart, which describes lifelong predispositions, a decumbiture describes one episode: how it began, how it is unfolding, where its turning points lie and what shape its ending may take.
The method asks three questions: what is the nature of the process, how is it changing, and what supports or obstructs recovery. None is a medical diagnosis. The chart cannot see a pathogen, read a blood test or know a prescription; it offers a language for describing a situation.
1. Scope and limits
A decumbiture is a medical chart cast for an event, not for a birth or a question. Its subject is entry into illness: the point at which a person's state changed enough that ordinary life stopped.
A chart cast for the diagnosis describes an encounter with the medical system; one cast for the first symptom describes the beginning of a process; one cast for the moment the person took to bed describes a phase in which illness already has the upper hand. They are different charts.
Three limits follow. Subject: the chart describes a symbolic pattern, not a biological cause; "cold and dry" is a quality, not a lab result. Method: decumbiture does not replace examination, diagnosis or treatment, does not decide whether surgery is needed, and does not predict a lifespan. Ethics: even where the tradition spoke of "crisis" and "danger", modern practice does not turn that into a verdict.
Unlike horary, decumbiture fixes an event that has already occurred and can be cast retrospectively. It is not an electional chart.
2. The moment of falling ill
The accuracy of the whole method rests on one event. If that event is vague, the chart will describe uncertainty rather than illness.
A hierarchy of moments. (1) The first distinct symptom that changed the state. (2) The moment the person took to bed, the classical choice that gave the method its name. (3) The first contact with a doctor: acceptable when onset was not recorded, but this is a chart of meeting help. (4) The diagnosis: the weakest option, because it may come weeks later and may change. Choose the earliest distinct change of state that the person can name to within an hour, write it down, and do not change it after seeing the chart.
What counts as onset. The anchor is the moment the person first said "I am ill" — not "something twinged", but "I cannot work, I need to lie down". That definition is tied to behaviour rather than to a threshold of sensation.
Chronic and gradual conditions have no single onset: arthritis, depression and metabolic disturbance develop over months. Here the chart uses a conventional point — "the day I first could not go to work", "the day the doctor first said this was serious". State the convention aloud: the chart then describes not the biological beginning but entry into the sick role.
Time, place and precision. Use the civil time in force at that place on that day, including historical daylight-saving and wartime clock changes: an hour of error moves the Ascendant by about 15°. Use the coordinates where the person actually was at the moment of onset, not the home address. Record the source of the time and its precision: minute, ±15 minutes, hour, half a day or unknown.
The Ascendant moves about 1° every four minutes, though the rate varies with latitude. The Moon moves 11.8–15.4° per day and is more tolerant of error. Hence the asymmetry: the Moon and planets can be read with an hour of uncertainty; the houses cannot. If the Ascendant is in the last degrees of a sign, say that the houses are provisional. Do not "rectify" a decumbiture against symptoms.
3. Constructing the chart
Use the tropical zodiac unless the tradition requires the sidereal; fix whole-sign, equal or quadrant houses in advance; use the seven visible planets. Reasonable orbs are 6–8° for the luminaries, 5–6° for planets and 1–2° for fixed stars, which shift about 1° every 72 years through precession.
4. Significators of the patient
The Ascendant is the body and its general vitality. Its sign describes the style of reaction: fire responds quickly, acutely and with heat; earth slowly and structurally; air in a mobile, nervous way; water sensitively and with fluid retention. This is a style, not a diagnosis.
The lord of the first house is the patient's primary significator. Its dignity, house, aspects and speed show how much resource there is for resistance and recovery. A strong lord suggests reserve; a weak, combust, retrograde or besieged lord suggests vulnerability, not a verdict.
The Moon is the body in its current state, its fluids, rhythm and emotional tone. In decumbiture it is often both a co-significator of the patient and the indicator of how the illness changes over time: not only "the patient" but also "the clock".
The Sun is vital spirit and general tone. In acute conditions it shows how well the person is holding up; in chronic ones, how much energy is available for a long haul.
Strong condition means domicile or exaltation, an angular house, direct and swift motion, freedom from combustion, harmonious aspects and reception. Weak condition means detriment or fall, the sixth, eighth or twelfth house, retrogradation, combustion, hard aspects or besiegement. There is no universal scale that turns a chart into a number; if a score is used, declare the weights in advance. The total must not replace judgement.
5. The sixth house and the disease significator
The sixth house is the main house of illness. In decumbiture it is read not as "health" in the natal sense but as the illness process itself: its nature, location, pace and tendency to recur.
The sign on the cusp sets the quality of the process: fire gives an acute, hot, fast pattern; earth a slow, structural one; air a mobile, nervous one; water a moist, cold one with retention. This is not a disease name but its "temperament".
The lord of the sixth is the primary significator of the disease. Its house shows where the process "lives": in the sixth it is manifest; in the first it has entered the body; in the twelfth it is hidden; in the eighth it is bound up with crisis; in the fourth with the ending and the sickbed.
Planets in the sixth add detail: Mars sharpness and inflammation, Saturn a drawn-out quality, Mercury a nervous or respiratory one, Venus fluid retention, Jupiter excess, the Moon cyclicality, the Sun general vitality. A weak sixth lord can mean "not strong" or "hidden"; a strong one can mean active illness or a vivid picture. Context decides.
5.1. The relation between the first and sixth houses
| Configuration | Reading | Caution |
|---|---|---|
| Lord 6 in 1 | Illness has entered the body | Not "incurable" |
| Lord 1 in 6 | The person is absorbed by illness | Not "gave up" |
| Lord 6 in 8 | The process tends toward crisis | Crisis is not death |
| Lord 6 retrograde | Return, relapse, delay | Treatment still applies |
| Lords 1 and 6 in aspect | Body and illness are in dialogue | An aspect is not an outcome |
| Lords 1 and 6 in aversion | No connection, uncertainty | Not "nothing matters" |
| Mutual reception | Patient and illness are bound together | Not a guarantee |
Reception sharpens the balance: if the sixth lord stands in a sign ruled by the first lord, the illness is "under" the patient; if the reverse is true, the illness sets the terms.
6. The Moon: the course of illness and its clock
If the sixth house answers "what is this?", the Moon answers "how is it changing?". It completes a circle in 27.3 days and a phase cycle in 29.5 days; its speed varies from 11.8° to 15.4° per day.
Phase. A waxing Moon suggests a process gaining strength; the full Moon is maximum manifestation and a classical crisis point; a waning Moon suggests decline and clearing; the new Moon is a point of minimum light, uncertainty and renewal. Phase describes direction, not severity.
Speed and special positions. A fast Moon (near 15° per day) accelerates events; a slow Moon (near 12°) stretches them. A void-of-course Moon makes no exact major aspect before leaving its sign: "the matter does not move", delay, uncertainty. Combustion (within 8.5° of the Sun) hides or sharpens a process; "under the beams" (17°) weakens visibility; the via combusta (roughly 15° Libra to 15° Scorpio) is a difficult stretch, not an automatic disaster.
Aspects. An applying aspect shows the next turn; a separating one shows what has already happened. Translation of light, collection, prohibition, refranation and frustration describe how an expected aspect is helped, redirected or blocked; they say "a turn is possible", not "the crisis will occur at 14:20".
Three ways of timing must not be confused: the next applying aspect (hours or days), the Moon's aspect to its own onset position (the "lunar days" of the illness), and the Moon's phase relative to the Sun (the classical "critical days"). The first two give different dates because the sidereal and synodic cycles do not coincide. Speak of a window where several methods converge, not of "the very day".
7. Critical days and crisis points
Classical medicine taught that an illness has "judgement" days on which the process resolves: a turning point, a drop in fever, a crisis. In the astrological version these days were tied to the Moon: its quarters, returns and contacts with key degrees of the chart.
The seventh, fourteenth and twenty-first days are named most often. There is no single canon, so the honest formulation is a weekly, fortnightly and three-week horizon, not "the crisis must fall on day seven".
Calculation. The quarters of the synodic month fall about 7.4 days apart. The Moon's square to its onset position arrives in 6–8 days, its opposition in 12–15, its return in 24–30, depending on speed. A precise date without an ephemeris is false precision. Count the onset day as day one or day zero? Fix the rule in advance; the difference is a whole day.
What a crisis is. A crisis is not necessarily deterioration. It is the point at which the process stops being what it was: fever falls or rises, clarity appears, a turning point is reached. The tradition distinguished a "good crisis" (the body copes) from a "bad" one (strength fails), so "crisis" does not automatically mean "danger". Markers include an exact Moon aspect to the sixth lord or cusp, the Moon in the eighth, a station of the sixth lord, or an eclipse on a key degree. They mark a period for attention, never a reason to cancel treatment or delay help.
Anareta. The tradition used this term for a planet symbolically associated with the destruction of life, but defined it in incompatible ways. Do not calculate or announce an anareta, and do not name a "killing planet" with a date; the term is useful only for recognising old texts.
Modern correction. Treatment changes the natural history of illness, so critical days are not a schedule but symbolic points for attention. Clinical decisions belong to the physician.
8. Reading protocol
Use the rule of three testimonies: a conclusion is robust only when at least three independent indicators from different layers support it — for example, the lord's dignity, its house and the Moon's aspect. With fewer, soften the wording.
1. Data. Time, place, source, precision, time zone; note which conclusions are limited.
2. Method. Zodiac, houses, orbs and planet set, written down before reading.
3. The patient. Ascendant, its lord, first-house planets, Moon and Sun; what resource and style of reaction?
4. The illness. Sixth cusp, its lord, planets in the sixth, aspects; what quality, and where symbolically located?
5. The relation. Aspect, reception and mutual position of the lords of the first and sixth; who sets the terms?
6. The Moon. Phase, speed, house, aspects, void of course, combustion, via combusta; where is the next turn?
7. Help. Seventh house (physician) and tenth (treatment), their links to the first and sixth; what supports, what obstructs? Do not prescribe.
8. Depth. Eighth house and its lord, aspects to the first and sixth; how serious is the theme? Avoid "fatal".
9. Ending. Fourth house and its lord; the image of completion is a symbol, not a guarantee.
10. Time. Next Moon aspect, square, opposition and return, and phase; record windows, not dates.
11. Formulation. Three scenarios — supportive, mixed, demanding attention — with two or three symbolic indications each; no diagnoses or treatment advice.
12. Frame. Restate the limits and name the warning signs that require immediate medical help.
9. Worked examples
These charts are constructed for teaching.
Example 1. An acute episode
12 March, 04:40 local time, about 50° north; whole-sign houses.
| Factor | Position |
|---|---|
| Ascendant | 12° Virgo |
| Lord 1 | Mercury 2° Pisces, retrograde, combust, 7th house |
| Sixth house | Aquarius; Saturn 15° Cancer, retrograde, in detriment, 11th house |
| Sun | 9° Pisces, 7th house |
| Moon | 20° Leo, waning gibbous, 12th house |
| Mars | 20° Aries, in domicile, 8th house, square Saturn |
| Jupiter | 25° Cancer, exalted, 11th house |
Reading. Virgo rising gives a discriminating, nervous style; Mercury, its lord, is retrograde, combust and in detriment in the seventh, so the patient's resources are obscured and placed in the physician's hands. The sixth is Aquarius, ruled by Saturn retrograde in Cancer in the eleventh: the illness is slow, cold and fluid, and its lord sits in the house of support. Mars in Aries in the eighth, square Saturn, is the sharpest signature: an acute inflammatory crisis inside the crisis house. Jupiter, lord of the fourth, is exalted in the eleventh: the ending is supported, but through other people.
Timing. The Moon applies to a sextile with Saturn in about two days. Its square to its own place falls near day 7, its opposition to the sixth cusp near day 12, and the last quarter near day 9. The useful windows are day 7 and days 9–12.
Example 2. A gradual onset
3 November, 17:20 local time; the anchor is "the first evening I could not walk to work"; whole-sign houses. Ascendant 21° Pisces; Jupiter, lord of the first, at 8° Taurus in the third; the sixth is Leo, ruled by the Sun in Sagittarius in the tenth; the Moon at 7° Leo, waning, in the sixth; Saturn at 17° Aquarius in the twelfth.
Reading. Pisces rising gives a fluid, sensitive style; Jupiter in Taurus is ordinary, so the reserve is moderate. The sixth is Leo, ruled by the Sun in the tenth: the complaint is visible and already under treatment, but the Sun is peregrine, so the medical framing is not firm. The Moon in the sixth is the body absorbed by the illness; waning, it shows low reserves. Saturn in Aquarius in the twelfth points to a hidden, chronic background. Dates are meaningless here; only the pattern is usable.
10. Common mistakes
1. Casting for the diagnosis instead of the onset. A diagnosis is an explanation, not the event of illness.
2. Ignoring the precision of the time. An hour of error is about 15° of Ascendant.
3. Changing the house system mid-reading. That is fitting the chart to the answer.
4. Treating the sixth house as a diagnosis. It describes a quality, not a disease name.
5. Reading the eighth house as death. It shows the depth of a crisis, not a verdict.
6. Calculating and announcing an anareta. This is unethical and misleading.
7. Ignoring the Moon's phase and speed. Without them, "day seven" is an empty number.
8. Treating a crisis as necessarily bad. A crisis is a turning point.
9. Using decumbiture to choose the time of surgery. That is electional astrology and a medical decision.
10. Reading the chart after the outcome and calling it a prediction. That is hindsight.
11. Using the chart to confirm a diagnosis or to argue against treatment. A direct ethical breach.
12. Naming a date of death or a "fatal year". Never acceptable.
11. Ethical and clinical limits
The astrologer does not: diagnose or name a disease; prescribe or advise starting or stopping medication; interpret tests or scans; predict death, lifespan, a "fatal year" or an inevitable complication; discourage surgery, vaccination or medical care; guarantee recovery or promise a "cure"; use fear or guilt; read a third party's chart without consent; publish health data; or present a symbolic reading as a clinical conclusion.
The astrologer does: ask what the physician has said and what plan is in place; separate observation from interpretation ("you say that...", "in the chart this looks like..."); speak in the mode of possibility, not "you have"; support adherence without competing with the physician; name warning signs; record consent and boundaries; keep notes; and refer when in doubt.
Red flags. Stop and direct the person to medical care for chest pain, sudden weakness or numbness, difficulty breathing, severe bleeding, sudden severe headache, loss of consciousness, high fever with neck stiffness, sudden loss of vision, severe abdominal pain, thoughts of suicide, unexplained weight loss or a new growth. Do not "check" these against the chart.
Vulnerable groups. Children, pregnant people, older adults, people with mental illness, the severely ill and the recently bereaved need particular care: words about a "weak chart" or a "hard year" can increase anxiety.
Hindsight and honesty. After an outcome is known it is easy to "see" it in the chart, but that is retrospective interpretation, not prediction. Do not present it as a forecast or select only the successful cases.
12. Checklist
Before reading
- [ ] Time, place, source and precision are recorded.
- [ ] The method (zodiac, houses, orbs) is fixed in advance.
- [ ] Consent for the conversation is in place.
During reading
- [ ] The Ascendant and its lord are described without judging the person.
- [ ] The sixth house is read as a quality, not a diagnosis.
- [ ] The Moon is read by phase, speed, house and aspects.
- [ ] The eighth house is described without fatalism.
- [ ] Time is gathered into windows, not dates.
- [ ] Three scenarios are formulated.
After reading
- [ ] The person understands that this is not a diagnosis.
- [ ] Warning signs have been named.
- [ ] There is no medication advice and no death forecast.
- [ ] Notes are stored without identifying data.
- [ ] The person is referred to a physician where needed.
13. Conclusion
Decumbiture works not with "fate in general" but with a specific turning point: body, illness, physician, treatment, crisis, ending. That dramaturgy helps a person see a situation as a process rather than as chaos.
But the closer a method comes to the body and to fear, the greater the risk of harm. Mature practice is therefore not bold judgement but disciplined boundaries: do not name a disease, do not prescribe, do not frighten, do not promise, do not delay care. The chart can provide language and a better order of questions; it cannot provide a diagnosis. As a historical symbolic language it is useful; as a medical oracle it is dangerous. The choice is made not by the chart but by the practitioner.
Prepared by the [Astrobot](https://astrobot.chat) team. Based on the classical and modern astrological tradition.
endant, Moon, houses and aspects, monthly theme synthesis, timing by lunar houses and phases, comparison with natal and solar returns, limitations and common mistakes.