Many have felt during meditation or even outside of it the dreamlike character of the world. As dreams are only thoughts, this means that they have felt the truth of mentalism. However, the world is only like but not actually a dream. When one meditates on the reason still more subtly he finds that it is really the substance of God reflected forth, the self-externalization of Cosmic Mind. It is there divine in essence. Its form is changing and an appearance but its ultimate stuff is, in reality, God. Life here on earth is divine in this sense. Once this is grasped, he finds a fresh basis for conduct, a deeper inspiration for activity. He cannot be a mere dreamer, cave dweller, or drifter. He must act. But actions will now be inspired by and performed for that deeper self within, and will therefore be impersonal and altruistic.
-- Notebooks Category 21: Mentalism > Chapter 3 : The Individual and World Mind > # 43