By Paramhansa Yogananda in "The Essence of Self-Realization". Self-realization means realizing your true Self as the great ocean of Spirit, by breaking the delusion that you are this little ego, this little human body and personality... The wave must realize that its reality, as a mere wave, is temporary. It may appear again and again as other waves, but in the end it has to realize that its reality lies not in its separateness as a wave, but in the ocean of which the wave is a manifestation. Realization of its true identity demands merging into the ocean and becoming one with it.