Existence itself.

This is the signification of the word You.
"Now, as a consequence of this system, every being containing in itself a portion of the igneous and etherial fluid, common and universal mover, and this fluid soul of the world being God, it followed that the souls of all beings were portions of God himself partaking of all his attributes, that is, being a substance indivisible, simple, and immortal; and hence the whole system of the immortality of the soul, which at first was eternity.* * In the system of the first spiritualists, the soul was not created with, or at the same time as the body, in order to be inserted in it: its existence was supposed to be anterior and from all eternity.

Such, in a few words, is the doctrine of Macrobius on this head.

Som.Seip.

passim.
"There exists a luminous, igneous, subtile fluid, which under the name of ether and spiritus, fills the universe.
It is the essential principle and agent of motion and life, it is the Deity.