There is a profound difference between ideas or beliefs about spirituality and the experience of spirituality. True spirituality or religion is not to be believed, but realized, actualized, in the heart.  This lecture covers the difference between the Doctrine of the Eye (theories, beliefs, and ideas) and the Doctrine of the Heart (intuition, conscious faith and direct experience).  This relates to both exoteric and esoteric schools, the exoteric being the "public and exterior," and the esoteric the "hidden or secret" doctrine.