That is Love when it is all and that is nothing when it is understanding. That is not perceivable, not graspable, beyond intellect and knowledge. For it is not different from the perceiver, the perception and the perceived. It is beyond these and it is all. Knowledge can not understand it because it is not an object of understanding. The eyes cannot see it because it is not visible through the senses. And hence it is omnipresent and permeates all. It has no dimension because it is beyond dimensions. It has not been created because all creation happens through it. It is beginningless and endless. Realizing That is dying to the Self. That is revealed by Self-Knowledge although it cannot be known. If it is known, it is not That. If it is experienced, it is not That. If it is perceived, it is not That. If it is described, it is not That because it is beyond words, beyond perception, beyond experience and beyond intellectual knowledge. Being in the state of Self-Knowledge reveals that which is beyond all concepts, that which is beyond duality. Talking about Oneness is wrong, because the label is never That. Nobody can teach you That but it is understood through listening. It is understood by devotion. It is understood in Love because it is Love and it is all. That is all and That is nothing.