try reading
The Secret Teachings of All Ages by Manly P. Hall [1928]
here is an excerpt under
Mystic Christianity:
To the multitudes Jesus spoke in parables; to His disciples He also spoke in parables, though of a more exalted and philosophic nature. Voltaire said that Plato should have been canonized by the Christian Church, for, being the first propounder of the
Christos mystery, he contributed more to its fundamental doctrines than any other single individual. Jesus disclosed to His disciples that the lower world is under the control of a great spiritual being which had fashioned it according to the will of the Eternal Father. The mind of this great angel was both the mind of the world and also the worldly mind. So that men should not die of worldliness the Eternal Father sent unto creation the eldest and most exalted of His powers--the Divine Mind. This Divine Mind offered Itself as a living sacrifice and was broken up and eaten by the world. Having given Its spirit and Its body at a secret and sacred supper to the twelve manners of rational creatures, this Divine Mind became a part of every living thing. Man was thereby enabled to use this power as a bridge across which he might pass and attain immortality. He who lifted up his soul to this Divine Mind and served It was righteous and, having attained righteousness, liberated this Divine Mind, which thereupon returned again in glory to Its own divine source. And because He had brought to them this knowledge, the disciples said one to another: "Lo, He is Himself this Mind personified!"