Phenomenal Spirituality Program 5

What is pure consciousness, and how can we convey this idea? From Hegel who initiates the idea of being; in-itself, for-itself & for-another, we move to Sartre and his book: Being & Nothingness. Sartre moves in contrast to Descartes' 'Cogito ergo Sum.' The attempt to demonstrate being in contrast to essence: Being precedes essence.