Hinduism is known as Sanatana Dharma (Eternal Dharma) because it is not founded by any person or person. It has evolved from the spiritual life of all the people of India for over 5,000 Years. It rests on universal and eternal spiritual principles and not on belief and dogmas, or on the word of a Prophet etc. it is spiritual science based on self-disciplined systematic investigations, reasonings, meditations, and realizations in super conscious stages by great spiritual scientists called Rishis and other spiritual geniuses. Some of them, like Sri Krsna (the preacher of the wonderful Bhagavad-gita), Bhagavan Buddha, Acarya Sankara, and others, were so great that they are considered as incarnations of Divinity. Sri krsna is even considered as the very God Himself in human form. Even then, Hinduism does not rest on them, but on Impersonal Universal Truth. Hinduism, being a science, is not a once-for-all-fixed-religion of dogmas like most other religions, nor is it a closed system. And like science, it continues to explore the Infinite Divine Reality and keeps on growing vaster and richer and improving upon the past by incorporating the discoveries and teachings of great spiritual men and women, even from outside, from time to time. It invites noble thoughts from everywhere.