"We come now to the ascent of the knower's soul after death, the main prospect held out to the true Gnostic or tic, in the anticipation of which he conducts his life. After what we have heard about... the astral descent of the soul, the description of the ascent in the ' requires no further explanation: it is the reversal of the former. ...The celestial journey of the returning soul is indeed one of the most common features in otherwise widely divergent systems, and its significance for the gnostic mind is enhanced by the fact that it represents a belief not only... expressive of man's relation to the world, but... the meaning of gnosis is to prepare for this final event, and all its ethical, ritual, and technical instruction is meant to secure its successful completion. Historically there is an even more far-reaching aspect... (though no longer passing under the name of Gnosticism) the external topology of the ascent through the spheres, with the successive divesting of the soul of its worldly envelopments and the regaining of its original cosmic nature, could be "internalized" and find its analogue in a psychological technique of inner transformations by which the self, while still in the body, might attain the Absolute as an immanent, if temporary, condition: an ascending scale of mental states replaces the stations of the mythical itinerary: the dynamics of progressive spiritual self-transformation, the spatial thrust through the heavenly spheres. Thus could transcendence itself be turned into , the whole process becomes spiritualized and put within the power and the orbit of the subject. With this transposition of a mythical scheme into the inwardness of the person, with the translation of its objective stages into subjective phases of self-performable experience whose culmination has the form of ecstasis, gnostic myth has passed into mysticism (Neoplatonic and monastic), and in this new medium it lives on long after the disappearance of the original mythological beliefs."
January 1, 1970
https://en.wikiquote.org/wiki/The_Gnostic_Religion