Lord Krishna... proclaims Self-realization, true wisdom, as the highest branch of all human knowledge-the king of all sciences, the very essence of dharma ("religion")-for it alone permanently uproots the cause of man's threefold suffering and reveals to him his true nature of Bliss. Self-realization is yoga or "oneness" with truth-the direct perception or experience of truth by the all-knowing intuitive faculty of the soul.
Paramahansa YoganandaBirths and deaths are inevitable for man only during the state of ignorance in which he thinks he is the body and cannot exist without it. Only the man who will not seek the awakening of wisdom must suffer the nightmares and delusive dreams of births and deaths and the fanciful miseries and limitations attending them. (gt)
Paramahansa Yogananda