THE SEVEN HERMETIC LOTS
Lot of Necessity
Obligations and constraints. Explore the traditional topic, the day and night formulas and a grounded way to reflect on the placement.
Go deeper: the full reference
The traditional topic
Necessity, often called Ananke, is associated with Mercury in this convention. Traditional discussions concern constraint, obligation, pressure and what cannot simply be wished away. Its formula uses Fortune, relating the topic to the conditions within which choices are made.
Arabic name and planetary association
سهم الضرورة (sahm al-ḍarūra). This is a descriptive Arabic translation of the topic, not a claim that all historical authors used this name. The displayed identifies the associated planet, Mercury. It is a planetary association, not a distinct ancient Arabic glyph for this Lot. The planet associated with a Lot and the ruler of the sign containing it are separate parts of a reading.
Day and night formulas
Using the Paulus convention, day: Ascendant + Fortune − Mercury. Night: Ascendant + Mercury − Fortune. All terms are zodiac longitudes; wrap the final answer into 0°–360°. Fortune and Spirit in these formulas mean the Lots already calculated for the same chart’s sect.
How to read the placement
Separate an actual constraint from an assumption you may be able to question. Deadlines, resource limits, care responsibilities and agreements require different responses. Mercury’s role can support reflection on the information, negotiation or planning that helps you work with a limit, without claiming those actions dissolve every hardship.
An example to picture
An approaching deadline may be fixed while the scope of a project can still be discussed. As a reflective prompt, Necessity can help you identify the non-negotiable part, communicate a limit and seek assistance. That is different from declaring every pressure unavoidable.
A common misunderstanding
Necessity is not a sentence of suffering or proof that harmful treatment must be accepted. Its formula is not interchangeable with every historical Lot bearing a similar name. External constraints deserve practical support and attention to real conditions.
A question to sit with
Which obligation is real, which expectation can be renegotiated, and what information or help would give you more room to respond?
Follow the Lots in your own chart
Use your recorded birth time and birthplace to calculate the seven Hermetic Lots. Compare the stated sect and formulas with this lesson, then read each placement as a symbolic question in its chart context.
Method and context
These references support the historical context and the Paulus formula convention. Interpretations and reflection questions are original Synastry work.
The Astrology Podcast: The Lot of Fortune and Spirit in Astrology ↗ · Historical discussion of Lots, the Paulus scheme and differences between authors such as Paulus and Valens.
Arabic parts: The Hermetic lots ↗ · A secondary reference table for the seven day and night formulas attributed to Paulus Alexandrinus.
Al-Biruni: The Book of Instruction in the Elements of the Art of Astrology ↗ · R. Ramsay Wright translation, §475–476: Fortune and the Sun’s Lot (Spirit). The latter is given more fully as the Lot of the unseen and religion; names and formulas vary across authors.
Arabic names of the zodiac signs ↗ · Arabic-language reference for the familiar twelve zodiac signs. These labels do not define a separate zodiac or change the calculation.
Arabic zodiac vocabulary and transliteration ↗ · Arabic zodiac terms. We consistently write the article al-; its pronunciation can assimilate to the following consonant.
Unicode: Lot of Fortune ↗ · U+1F774 LOT OF FORTUNE (pars fortunae), cross-referenced with U+2297 ⊗. Synastry uses the familiar crossed-circle vector form.
Connect the ideas
Read a Lot without turning it into a verdict
Begin with the Lot’s topic, then consider its sign and wider chart context. Turn the symbolism into a question you can test against lived experience.
2 min readRead a Lot formula and follow the degrees
Convert each position to a longitude from 0° to 360°, apply the stated formula and wrap the answer around the zodiac.
2 min readDay, night and the meaning of sect
Sect distinguishes a chart with the Sun above the horizon from one with the Sun below it. The seven formulas here reverse between those two conditions.
2 min readArabic names and symbols
Learn the Arabic names of the twelve zodiac signs, the historical names of Fortune and Spirit, and how to distinguish a Lot symbol from an associated planet.
2 min read