"Yoga has been superficially misunderstood by certain Western writers, but its critics have never been its practitioners. Among many thoughtful tributes to yoga may be mentioned one by Dr. C. G. Jung, the famous Swiss psychologist. "When a religious method recommends itself as 'scientific,' it can be certain of its public in the West. Yoga fulfills this expectation," Dr. Jung writes (7). "Quite apart from the charm of the new, and the fascination of the half-understood, there is good cause for Yoga to have many adherents. It offers the possibility of controllable experience, and thus satisfies the scientific need of 'facts,' and besides this, by reason of its breadth and depth, its venerable age, its doctrine and method, which include every phase of life, it promises undreamed-of possibilities. "Every religious or philosophical practice means a psychological discipline, that is, a method of mental hygiene. The manifold, purely bodily procedures of Yoga (8) also mean a physiological hygiene which is superior to ordinary gymnastics and breathing exercises, inasmuch as it is not merely mechanistic and scientific, but also philosophical; in its training of the parts of the body, it unites them with the whole of the spirit, as is quite clear, for instance, in the Pranayama exercises where Prana is both the breath and the universal dynamics of the cosmos. "When the thing which the individual is doing is also a cosmic event, the effect experienced in the body (the innervation), unites with the emotion of the spirit (the universal idea), and out of this there develops a lively unity which no technique, however scientific, can produce. Yoga practice is unthinkable, and would also be ineffectual, without the concepts on which Yoga is based. It combines the bodily and the spiritual with each other in an extraordinarily complete way. "In the East, where these ideas and practices have developed, and where for several thousand years an unbroken tradition has created the necessary spiritual foundations, Yoga is, as I can readily believe, the perfect and appropriate method of fusing body and mind together so that they form a unity which is scarcely to be questioned. This unity creates a psychological disposition which makes possible intuitions that transcend consciousness." The Western day is indeed nearing when the inner science of self- control will be found as necessary as the outer conquest of nature. This new Atomic Age will see men's minds sobered and broadened by the now scientifically indisputable truth that matter is in reality a concentrate of energy. Finer forces of the human mind can and must liberate energies greater than those within stones and metals, lest the material atomic giant, newly unleashed, turn on the world in mindless destruction (9)."