Perhaps no aspect of the mind is more familiar and at the same time puzzling than consciousness and our conscious experience of the self and the world. The problem of consciousness is probably the central question of the current theorization of the mind and at the same time the most conceptually delicate. In this place we document and comment on the research of the Western scientific community and of the contemplative traditions in an effort to understand what consciousness is and how it relates to other non-conscious aspects of reality.