The Pymander treatise not only belongs to the most important type of the literature attributed to Hermes Trismegistus but is also the most important document within that type. It constitutes, so to speak, the Ground Gospel of the Hermetic Communities, in the form of a revelation or apocalypse received by the founder of the tradition. That founder, however, is not so much a historical personage as the personification of a teaching-power or grade of spiritual illumination […]

Source: Commentary on the Divine Pymander of Hermes by G.R.S. Mead – AlchemyLab.com