"There are a hundred and fifty or more definitions of religion. One says it is “what we do with our solitariness”; another that it is “how we integrate ourselves socially”; another that “the root of religion is fear,” and so on. The reason it is so difficult to define is that life itself is difficult to define. When we define religion in terms of its various manifestations, we get partial, sometimes contradictory definitions. But religion, having many forms, has only one root. That root is the urge after life, fuller life. In everything, from the lowest cell clear up to the highest person, there is an urge toward completion. We are all incurably religious. Even the Communists, though repudiating religion, are deeply religious. They want a better social order. They may be right or wrong in their method of getting it, but the very desire for a better social order is religious. For religion is a cry for life."