The next essential of harmonious human life is food. Most people of our day will say that food is rather the first essential of life. We, in this degenerate age, have indeed come to think so. But the Silver Age people, as well as all really thoughtful people amongst us, do not think so. Food does sustain life, no doubt, but that life, if void of wisdom and force of mind, is not worth living. It is the life of an animal or a vegetable. Food is essential to life; so are wisdom and mental force. Is our life sustained by food alone? I should think not, unless it be the life of a man who is but a little removed from a beast. Happy thoughts furnish the chief support of our life. Our life depends more upon happy and harmonious thoughts than food. If our thoughts are sad and gloomy, we do not enjoy life at all or feel that we are living, although we may eat the daintiest food, be surrounded by luxuries and have plenty of the world's goods. Many of us destroy this food-sustained life suffering from the pangs of miserable thoughts, many die of broken heart and other diseases brought on by the continued pressure of sad thoughts, although well fed and well clothed and well supplied with money and other material comforts of life. The Vaishyas represent the vital vigor of the Four-Caste organism, and as, according to the Shāstras, the seat of the vital vigor is the loins, the Vaishyas form the loins of that body. The Silver Age Vaishyas take to cultivation of the soil, raising of cattle and trade more for the weal of all mankind than for their own personal aggrandizement. The Sudras are the feet of the Four-Caste organism, very important members of the body too. They represent devotion through service. Indeed, devotion is the training which each caste passes through while fulfilling the duties of its profession. The Brāhmans are to practise meditation on God and study the Veda; the object is devotion to the Supreme Being. The Kshatriyas are to rule the other two castes with the aid of the Brāhmans, with love, justice and fatherly care according to inspired laws; the object is to acquire devotion to the Supreme Being. The Vaishyas are to till the land and raise cattle only to serve God's creatures; the object is to cultivate devotion to the Supreme Being thereby. The Sudras must serve the three pure and spiritual upper castes for the purpose of absorbing their spiritual magnetism through association and examples; the object is the same, cultivating devotion to the Supreme Being by loving service rendered to His devotees.