Describe symbolism in Secret of the Ages by Robert Collier

Collier takes a philosophical, almost theological break in Chapter Thirteen by teaching the Reader that he is not material, but is Spirit and that as Spirit he or she is in complete control of Life, Consciousness, and Will. Collier then refers to the Supreme Presence Power as I AM, as Good, as God, as Divinity. He attempts to persuade the Reader that because God said that He is within all man and that man is within Him, because He is all Good, all He symbolizes is good.