A Constructive Survey of Upanishadic Philosophy c6.s2.15

c6.s2.15

14. As the Upanishadic philosophers made this acute study of the sleeping and dreaming states of consciousness, they were not slow to take into account the aberrations of consciousness as manifested especially in the phenomena of mediumships and possessions. If we might say so, they conducted their own psychical research, however rudimentary, and however noiseless, it might have been. We have a definite illustration of this kind to show that the problem of psychical research had attracted their