Maniac or martyr, he is under the spell of a fixed idea. No reasoning avails against it. If he has assured himself that he is made of glass, no amount of argument will convince him to the contrary. He will always regard himself as being as brittle as glass. That is a fixed idea which is false. But there is a fixed idea which makes the hero and the martyr. For some great truth dearer than life is everything thrown aside. He is possessed by it, dominated by it, and he goes to death gladly for it. That state is said to be approaching Yoga, for such a man is becoming concentrated, even if only possessed by one idea. This stage corresponds to activity on the lower mental plane. Where the man possesses the idea, instead of being possessed by it, that one-pointed state of the mind, called Ekagrata in Sanskrit, is the fourth stage. He is a mature man, ready for the true life. When the man has gone through life dominated by one idea, then he is approaching Yoga; he is getting rid of the grip of the world, and is beyond its allurements. But when he possesses that which before possessed him, then he has become fit for Yoga, and begins the training which makes his progress rapid. This stage corresponds to activity on the higher mental plane. Out of this fourth stage or Ekagrata, arises the fifth stage, Niruddha or Self-controlled. When the man not only possesses one idea but, rising above all ideas, chooses as he wills, takes or does not take according to the illumined Will, then he is Self-controlled and can effectively practice Yoga. This stage corresponds to activity on the buddhic plane. In the third stage, Vikshipta, where he is possessed by the idea, he is learning Viveka or discrimination between the outer and the inner, the real and the unreal. When he has learned the lesson of Viveka, then he advances a stage forward; and in Ekagrata he chooses one idea, the inner life; and as he fixes his mind on that idea he learns Vairagya or dispassion. He rises above the desire to possess objects of enjoyment, belonging either to this or any other world. Then he advances towards the fifth stage— Self-controlled. In order to reach that he must practice the six endowments, the Shatsamapatti. These six endowments have to do with the Will-aspect of consciousness as the other two, Viveka and Vairagya, have to do with the cognition and activity aspects of it.