People who cannot understand the subject and who hear and read things by halves say that some chakras, centers, are opened by breathing exercises and that many kinds of distress may be the consequence. But looking at it from another point of view, one might as well say that the eyes of a child should never be opened, because he will thereby be exposed to temptations of all sorts. All virtue is in self-control, there is no virtue in being dead. Life is worthwhile only when a person leads it fully. People look for phenomena, but there is no better phenomena than breath itself, because breath is life and light, and in the breath is the source of life and light. In the mastery of breath the secret of both worlds is hidden.