There are three kinds among those who are in the habit of offering prayer. There is one who by praying fulfills a certain duty which he considers one among all the duties of life. He does not know to whom he is praying, perhaps to some God. If he is in a congregation he of necessity feels obliged to do as the others do. He is like one among the sheep who goes on without knowing where and why. Prayer to him is something he must do because he is put in a situation where he cannot help it. In order to fall in with the custom of the family or community, and in order to respect those around him, he does as everybody else. His prayer is mechanical, and if it makes any effect, it is very little.