The Hidden Teaching Beyond Yoga has stated the reasons for this "Beyond." That Reality lies close to the terminus of yoga practice is granted; that the wall between them is very thin is also granted. But the wall is also diamond-hard: it can be penetrated only by those who have been instructed in the nature of Reality or, more easily, in what it is not; who can discriminate between it and appearances which seem like it. (Grace plays its part but it is beside the point to raise this question here.) Those without such knowledge are handicapped. For instance, the Sufi mystic who repeats the mantric phrase "Allahu Akbar"--"God is most great"--dozens of times has had the work of gathering in his thoughts made easier; they are repulsed with each repetition, and thus concentration is eventually achieved. The Indian yogi follows the same process and gets the same result with his mantram, "Jai Ram, jai jai Ram"- -"Victory to the Lord"--repeated 108 times. (Beads may be pushed along a string for counting purposes.) Both Sufi and yogi may pass into ecstasy. But is this Reality or is it self-hypnotism?
-- Notebooks Category 12: Reflections > Chapter 5: The Literary Work > # 204