The method which a mystic takes to perceive the mentality of another is that he takes the movement of the person and his expression as a guide to arrive at his thought, and he takes his thought as a guide to his nature. By realizing the nature of man he comes to know about the very depth of his being, and instead of having a part of the knowledge about a person he gets to know all about him. To know that one has done right or wrong, to know that one is wise or foolish is not sufficient.