The sages who have realized the inner life have realized it by contemplative means. Man from his infancy is unaware of that something in him which is more than a faculty. By experiencing life only through the outer sense this faculty, which is the faculty of inner life, becomes closed through not being used, and this is just as if the door of a chamber of joy and light and life were closed. And as from infancy one has not experienced the joy and life and light of this chamber, which may be called a celestial chamber in the heart of man, one remains unaware of it.