The Natural Mind: An Investigation of Drugs and the Higher Consciousness

Ayurveda and the Mind: The Healing of Consciousness

Breath, Mind, and Consciousness

Yoga and Psychotherapy: The Evolution of Consciousness

The Nature of Consciousness: Essays on the Unity of Mind and Matter

Integral Consciousness and Sport: Unifying Body, Mind, and Spirit Through Flow

No Fixed Abode: Life and Death Among the UK's Forgotten Homeless

Maps of Consciousness: The Classic Text on Exploring the Mind and Expanding