Doctrine of the Gita
"The pantheistic doctrine of the Gita is that God is everything. Its verses celebrate the discovery of the Absolute, Spirit beyond creation, as being also the hidden essence of all manifestation. Nature, with her infinite variety and inexorable laws, is an evolute of the Singular Reality through a cosmic delusion: maya, the "Magical Measurer" that makes the One appear as many embracing their own individuality - forms and intelligences existing in apparent separation from their Creator. Just as a dreamer differentiates his one consciouseness into many dream beings in a dream world, so God, the Cosmic Dreamer, has separated His consciousness into all the cosmic manifestations, with souls individualized from His own One Being endowed with the egoity to dream their personalized existences within the Nature-ordained drama of the Universal Dream"
Excerpts from "God Talks with Arjuna - The Immortal Dialogue Between Soul and Spirit" by Sri Paramahansa Yogananda.