Study in Consciousness is a book by Annie Besant that was written in ca. 1904. Besant intended this book to be a contribution to the science of psychology. She writes that the seed of consciousness is the tri-atomic Atma-Buddhi-Manas, the Jivatma. The Super-consciousness includes the whole of the consciousness above the waking-consciousness, like dreams, visions, inspirations, etc. To bring the super-consciousness into manifestation on the physical plane, Besant proposes (in the early stages) to render the brain and sense-organs unresponsive to physical impacts and to induce Trance. This can be done by using the methods of Yogis. But she also says that there is a difference between the super-physical conditions of consciousness in the hypnotised subject and in the Yogi.