sit in a relaxed position (neither slouching, nor rigid), to close one’s eyes, and to try to see a white screen in front of one’s eyes, and to try to remove all interfering pictures and thoughts, then to try to follow one’s breathing; not to think about it, nor force it, but to follow it—and in doing so to sense it; furthermore to try to have a sense of “I”; I = myself, as the center of my powers, as the creator of my world. One should, at least, do such a concentration exercise every morning for twenty minutes (and if possible longer) and every evening before going to bed.[31]
