Sometimes by stretching one's hands and body one feels renewed strength, and brightness come to one's mind and body; sometimes without reason one feels depression and pain in general, and laziness besides, for which no one can suggest a cause, except that the light of the soul closes and discloses itself. When disclosed, brightness, freshness, and strength come; but when closed, depression, darkness, and weakness come. By knowing this we can realize that those who have sacrificed every pleasure, wealth, comfort, or power in life in their pursuit after the soul are justified; for a loss in pursuit of a greater gain is not necessarily a loss. Those who become independent of the physical body by meditation no doubt experience the state of the highest bliss and attain the everlasting life.