The word Being explains nothing, but nor does God. Being, however, has the advantage that it is an open concept. It does not reduce the infinite invisible to a finite entity. It is impossible to form a mental image of it. Nobody can claim exclusive possession of Being. It is your very essence, and it is immediately accessible to you as the feeling of your own presence, the realization I am that is prior to I am this or I am that. So it is only a small step from the word Being to the experience of Being.

Eckhart Tolle

from The Power of Now: A Guide to Spiritual Enlightenment