“Religion” is a word which has many meanings and a long history. In origin, it was concerned with certain rites, inherited from a remote past, performed originally for some reason long since forgotten, and associated from time to time with various myths to account for their supposed importance. Much of this lingers still. A religious man is one who goes to church, a communicant, one who “practises,” as Catholics say. How he behaves otherwise, or how he feels concerning life and man’s place in the world, does not bear upon the question whether he is “religious” in this simple but historically correct sense. Many men and women are religious in this sense without having in their natures anything that deserves to be called religion in the sense in which I mean the word. The mere familiarity of the Church service has made them impervious to it; they are unconscious of all the history and human experience by which the liturgy has been enriched, and unmoved by the glibly repeated words of the Gospel, which condemn almost all the activities of those who fancy themselves disciples of Christ. This fate must overtake any habitual rite: it is impossible that it should continue to produce much effect after it has been performed so often as to grow mechanical. The activities of men may be roughly derived from three sources, not in actual fact sharply separate one from another, but sufficiently distinguishable to deserve different names. The three sources I mean are instinct, mind, and spirit, and of these three it is the life of the spirit that makes religion. The life of instinct includes all that man shares with the lower animals, all that is concerned with self-preservation and reproduction and the desires and impulses derivative from these. It includes vanity and love of possessions, love of family, and even much of what makes love of country. It includes all the impulses that are essentially concerned with the biological success of oneself or one’s group—for among gregarious animals the life of instinct includes the group. The impulses which it includes may not in fact make for success, and may often in fact militate against it, but are nevertheless those of which success is the _raison d’être_, those which express the animal nature of man and his position among a world of competitors.