Indian culture is believed to be at least three thousand years old. It has been able to maintain unbroken continuity for such a long time, overcoming innumerable internal dissensions, many invasions by foreign hordes and two centuries of subjugation by a European power, mainly because of the spiritual vitality of the Hindu religious tradition which has no founder, no defining creed, no centralized authority. Nevertheless, it has maintained overall coherence, vitality and far-reaching influence for many centuries, mainly because it is based on a dynamic philosophy of life known as Vedanta.
Vedanta is not a religious creed or dogma which people accept out of fear of divine wrath or human wrath. Vedanta represents the timeless quest of the human soul for the Eternal and the Infinite. It is the outcome of the enquiries conducted by the ancient sages of India into the mystery of life, mystery of death, mystery of consciousness, mystery of Existence – much like the philosophical speculations of ancient on external observation, the ancient Indian sages, known as Rishi, developed techniques of inner concentration, collectively called Yoga. The transcendental knowledge gained by the Rishis through Yoga knowledge came to be known aa Upanishads. The concepts of the Upanishads, most of which were brought to the light by the sages between 800 B.C. and 300 B.C., were systematized in subsequent centuries to form the Vedanta philosophy.