The impact of this discovery that the mind is merely dreaming the world around him and that the senses are merely contributing to this dream, may be quite unsettling for a long while afterwards. Our life may be deprived of purpose, our existence of reality, our will of its power, and our desires of their vitality. For those who have been too attached to earthly things, such a mental state may be useful medicine to cure them of their excessive attachments. But man does not live by medicine alone; he needs bread. Therefore, we must put this discovery eventually in its proper place along with all the rest of philosophic truth. If we succeed in doing this we shall recover our balance, we shall live in the world but not be of it, we shall be adequate to our responsibilities but not be enslaved by them, we shall be active but not let activity destroy our inward peace.
-- Notebooks Category 21: Mentalism > Chapter 5: The Key To the Spiritual World > # 43