knowledge of the soul’s way out of the world, comprising the sacramental and magical preparations for its future ascent and the secret names and formulas that force the passage through each sphere
Jonas defines the practical dimension of gnosis as precisely the soul’s itinerary of post-mortem ascent through the spheres, equipped with sacramental and magical means, culminating in reunion with the divine substance.
, The Gnostic Religion: The Message of the Alien God and the Beginnings of Christianity, 1958thesis