It has always been the tendency of the stronger and more intelligent men to keep the weak and simple down. Owing to the inclination of the higher caste to keep itself pure from further admixture of the lower classes, a religious rule was made enforcing the belief that the Sudra, the lowest, could not become a Vaisha, the Vaisha could not become a Kshattria, nor a Kshattria be admitted among Brahmins, the highest and supreme class of the time, unless by his good actions he had made it possible that he should be born, in the next incarnation, in a family of the higher caste. The idea of reincarnation, as a belief generally held, was made the basis of the Hindu religion, upon which the whole building of Brahminism was erected. But everyone in the world has an inclination to raise his head and climb up higher, if he can, from that level upon which he may have been set in life.