The great sages of Hinduism (more appropriately, Sanatana Dharma, the eternal religion) through their arduous search for the supreme truth heard in their hearts eternal truths which they recorded in the Vedas (also called sruti, the heard revelation). The Vedas reveal the highest truth man can know and lead him to the highest good and immortality. The sages and the wise men who realized the supreme happiness of union with Go, have given mankind a wonderful treasure of mantras which being peace and prosperity on earth and eternal life in the hereafter.