From Way of Mastery, Lesson 8
That illusion, by the way, is not the physical body, nor is it the physical dimension, since in Reality, the physical dimension does not exist. What exists is thought, streaming forth from mind, creating, or outpicturing, that which has been held within the mind. So the very physical body becomes only a symbol of what the mind has decided to believe.
The body becomes one thing: a temporary opportunity to extend the good, the holy, and the beautiful. In other words, even the body, itself, can have no purpose, save that which the Comforter, the Holy Spirit, the Right-mindedness within you, would give to the body.
Therefore, if you would know a body at peace, if you would know a body that serves only the function of being a communication device for the Love of God, cease in perceiving it as your own, and give up the apparent right to make decisions for yourself, in regard to the body. Merely refer to it as “the body”