Religion, mysticism and magic all spring from the same basic 'feeling' about the universe: a sudden feeling of meaning, which human beings sometimes 'pick up' accidentally, as your radio might pick up some unknown station. Poets feel that we are cut off from meaning by a thick, lead wall, and that sometimes for no reason we can understand the wall seems to vanish and we are suddenly overwhelmed with a sense of the infinite interestingness of things.
p. 28 - The Occult: A History (1971)