Mastery comes from evolution of the soul. And the sign of mastery is to conquer everything that revolts one. And that is tolerance. And the souls who have attained to some degree that spiritual mastery will see, with me, that not only with people, but even with food, that when a person will say, "This I do not like, that I will not eat," the soul who has gained mastery, rejects nothing, though it may not approve of it, it may not be especially attracted to it. And then with the weather, the masterly soul will not say, "It is too hot," or "too damp," or "too dry." "We do not tolerate what is before us." It is hard to tolerate, but we cannot help to meet it; the difference is in tolerating it. The whole system of the yogis, especially of the Shiva Bhaktis, is bases on making oneself acquainted with something that the nature revolts against. In this way they could go too far, in tormenting themselves. The extremity in all things is not right. At the same time that is the principle.