The Seba library treats Forty in 5 passages, across 4 authors (including Abraham, Lyndy, Strassman, Rick, Sinkewicz, Robert E.).
The number forty is biblically significant (Jesus was in the wilderness for forty days, the Israelites for forty years). In alchemy the period of forty days is less a precise than an approximate term.
Abraham establishes forty days as the canonical alchemical duration of putrefactio, linking it explicitly to its biblical antecedents while noting its approximate rather than literal character within laboratory and symbolic practice.
, A Dictionary of Alchemical Imagery, 1998thesis
It takes forty-nine days from conception for the first signs of the human pineal to appear. Forty-nine days is also when the fetus differentiates into male or female gender. Thus the soul's rebirth, the pineal, and the sexual organs all require forty-nine days before they manifest.
Strassman proposes a 'doctrine of elapsed time' in which forty-nine days serves as a convergent threshold across Tibetan Buddhist thanatology and human embryological development, implicating the pineal gland as the biological seat of spiritual transition.
, DMT: The Spirit Molecule: A Doctor's Revolutionary Research into the Biology of Near-Death and Mystical Experiences, 2001thesis
If Buddhist texts and human embryology reveal that different developments require forty-nine days, the events must be related. This association is perhaps logically shaky, but also intuitively appealing.
Strassman acknowledges the speculative character of mapping Bardo duration onto embryogenesis while maintaining the intuitive force of the forty-nine-day convergence as a psychospiritual synchronicity.
, DMT: The Spirit Molecule, 2001supporting
There he dwelt for forty years, Daniel tell[s us].
In the hesychast tradition documented by Sinkewicz, forty years of solitary desert practice constitutes the formative interval of contemplative depth, mirroring the biblical desert motif as a transformative container.
, Evagrius of Pontus: The Greek Ascetic Corpus, 2003supporting
suddenly realizing that they now had a total of forty sober members in their Fellowship.
Schaberg notes that the count of forty sober members served as the catalytic threshold that prompted Bill Wilson to propose writing what became the AA Big Book, giving 'forty' a minor but historically specific significance within the recovery narrative.
, Writing the Big Book The Creation of A A , 2019aside