Reason is rightly offended by these notions that a mere physiological trick like changing the manner of breathing or even a psychological trick like stopping the thinking process can confer everlasting inner peace upon a man and give him entry into the kingdom of heaven. This is the error of the rigid hatha yogi. No man can cheat God and find his way into the kingdom without changing his sense of values, his moral character, his desires, and his conduct. Only if he has really done this may such tricks help him to achieve his high purpose.
-- Notebooks Category 16: The Sensitives > Chapter 2: Phases of Mystical Development > # 101