This is the third book of a trilogy that addresses the Centre of Consciousness from a deepening perspective. It uniquely explores diverse traditions to uncover the common theme of a Centre of Consciousness expressed as the Spiritual Heart. The authors advance a process of Òevidence-based spiritualityÓ and explore topics such as the Presence and the Witness, the Void and Fullness, the Spiritual Heart in various traditions including the Bindu and _r_ Vidy_, the universe as subtle sound and advanced topics in meditation, along with a technical appendix. Standard paperback. Colour. Authors receive no royalties.