Adherence (Kollesis)

greek: Κόλλησις (Kollesis)

Definition

Adherence is the Hellenistic name for a very tight conjunction — a faster planet closing to a body-to-body meeting with a slower one within a narrow gap, usually about 3 degrees. The Greek word, kollēsis, literally means "gluing" or "sticking." The faster planet is read as fastened to the slower one, and at the moment the conjunction perfects their significations merge into one.

In Tradition

In Hellenistic astrology, adherence is treated as a more intense form of a completed conjunction, within the broader doctrine of how planets "join" (synaphē). Brennan and Crane keep it as a graded condition: an ordinary conjunction works at the wider whole-sign distance, while adherence asks for the tighter degree-bond that signals fully merged meanings. It is a close cousin of refranation, prohibition, and frustration in the family of joining doctrines — but where those describe a connection being destroyed, adherence describes a connection being fully made.

In Practice

You find an applying conjunction between two planets and check whether the gap has closed inside the roughly 3-degree adherence threshold. If it has, the configuration is read as more potent than a looser conjunction: the two planets' significations blend with greater intensity. In a horary chart — one cast for a specific question — adherence between the significators marks a strong, sure completion of the matter. In a natal chart, planets in adherence at the hyleg (the vital releaser), the sect light, or an angle tend to produce heightened results in keeping with their combined nature. The doctrine belongs to the wider Hellenistic way of grading a closing aspect by how tight it is, keeping the picture of planets "joining" in steadily closer degrees.

Historical Origin

Adherence appears in Hellenistic technical literature as kollēsis in Vettius Valens' Anthologiae (c. 145-175 CE) and across the wider Greek aspect-doctrine corpus. The term survives through the Arabic transmission as muttaṣil al-jirm, "bodily joining," and enters the medieval Latin tradition through Bonatti's Liber Astronomiae as adhaesio. It returned to traditional practice through Project Hindsight (Schmidt, 1990s), Crane's Astrological Roots, and Brennan's Hellenistic Astrology.

Definition

In Tradition

In Practice

Historical Origin

Further Reading