No matter what your faith is, what your belief is, Kriya Yoga is the scientific highway to the Infinite - for you will ascend the path from which your spirit descended into the flesh and became locked in the body. That is the purpose of Kriya Yoga. Kriya means action, and yoga means unity. Kriya Yoga means that action which brings unity of the descended soul with the Spirit from which we descended. - Paramahansa Yogananda.