This shows that it is not only that like attracts like, but like needs like. The position of man is a strange position in life; man is uncomfortable with his kind and unhappy without his kind, and he does not know what course is best to take. The Sufi, therefore, learns the lesson of endurance, to take the right course. For if one does not endure a devil one cannot endure an angel, if man is not happy on earth he cannot be happy in heaven. A person who has no endurance, his need will not even be answered in paradise.