Orthodox mystical theology in the mid-fourteenth century possesses as its crowning glory the two Gregories: St Gregory of Sinai and St Gregory Palamas.
This introductory note establishes Gregory of Sinai as one of the two supreme figures of Byzantine mystical theology, locating him biographically and historically within the hesychast movement centered on Mount Athos.
, The Philokalia, Volume 4, 1995thesis