We hear of lamas in Tibet who immure themselves in sealed rooms, with but a small hole in the wall to receive their morsel of food, so that in total darkness and in total inactivity they may better concentrate all their attention on their inner practices. We hear of monks in the Zendo halls of Japan who sit half round the clock while holding the mind persistently to their meditations. We hear of yogis in India who forsake wife and home, position and possessions, and withdraw to forest, cave, or ashram. We shrink with terror from such hard exercises and abnegations. How puny seems our own effort by contrast, how paltry our own self-denial!
-- Perspectives > Chapter 15: The Orient > # 20