Profection
every reader
What the tradition reads
A profection advances a chosen point, most often the ascendant, forward through the zodiac by one whole sign for every year of a person's life, so that at birth the profected point sits on the ascendant itself, at age one it has moved to the second house, at age twelve it has completed a full circuit and returned again to the first, and so on for as long as the method is applied. The sign the profected point reaches for a given year is read as the profected house for that year, its natural affairs brought to the front of the life, and the planet that rules that sign becomes the year's principal time lord, its own house, sign and condition in the birth chart read as governing the tenor of the whole year it presides over. The technique is prized in the Hellenistic revival for its simplicity, since it requires nothing beyond the birth chart and the current age to calculate, and is generally used alongside other timing techniques such as transits and directions rather than on its own.
The story
Profection is a Hellenistic technique, discussed by Ptolemy in the Tetrabiblos among the timing methods his tradition already used and treated at length by the astrologer Vettius Valens, who called a related method paradosis, a handing over, describing the transfer of the year's rulership from one planet to the next. Persian and Arabic astrologers who inherited the technique gave particular weight to profecting the ascendant specifically, and the eighth century Persian astrologer Omar Tiberiades is credited with the earliest surviving description of the degree based version of the method, later developed further by Abu Ma'shar. The English word profection comes from the Latin profectio, an advance or a setting out on a journey, though some scholars of the technique's history argue the word may actually descend from perfectio, a completion, twisted by a scribal error somewhere in transmission, a reading that fits both the Arabic term for the technique, intiha, meaning an arrival or a completion, and Ptolemy's own Greek phrase for the sign profection reaches at the end of each year.
Written from
Corpus key glossary:profection.