Every Hindu knows that astrologers try to fix the caste of every boy or girl as soon as he or she is born. That is the real caste - the individuality, and Jyotisha (astrology) recognises that. And we can only rise by giving it full sway again. This variety does not mean inequality, nor any special privilege.
The inner climate stamps each individual with its character. Every life-form has its own individual anomaly point of health, which makes the orderly reproduction of the species possible. This also explains why the world of parasites increases with fever.