Introduction -- Part I: The consciousness problem -- The appearance of a world -- A tour of the tunnel -- The unity of consciousness -- Part II: Ideas and discoveries -- Out of the body and into the mind : body image, out-of-body experiences, and the virtual self -- From ownership to agency to free will -- Philosophical psychonautics : what can we learn from lucid dreaming? -- Dreaming -- The empathic ego -- The shared manifold -- Part III: The consciousness revolution -- Artificial ego machines -- Consciousness technologies and the image of humankind -- A new kind of ethics