Bergson denies the identification of mind and body, saying[2]: "It (experience) shows us the interdependence of the mental and the physical, the necessity of a certain cerebral substratum for the psychical state-nothing more. From the fact that two things are mutually dependent, it does not follow that they are equivalent. Because a certain screw is necessary for a certain machine, because the machine works when the screw is there and stops when the screw is taken away, we do not say that the screw is equivalent of the machine." Bergson's simile of a screw and a machine is quite inadequate to show the interdependence of mind and body, because the screw does cause the machine to work, but the machine does not cause the screw to work; so that their relation is not interdependence. On the contrary, body causes mind to work, and at the same time mind causes body to work; so that their relation is perfectly interdependent, and the relation is not that of an addition of mind to body, or of body to mind, as the screw is added to the machine. Bergson must have compared the working of the machine with mind, and the machine itself with body, if be wanted to show the real fact. Moreover, he is not right in asserting that "from the fact that two things are mutually dependent, it does not follow that they are equivalent," because there are several kinds of interdependence, in some of which two things can be equivalent. For instance, bricks, mutually dependent in their forming an arch, cannot be equivalent one with another; but water and waves, being mutually dependent, can be identified. In like manner fire
[1. The master strongly condemns the immortality of the soul as the heterodox doctrine in his Sho-bo-gen-zo. The same argument is found in Mu-chu-mon-do, by Mu-so Koku-shi.
2. 'Creative Evolution,' pp. 354, 355.]
and heat, air and wind, a machine and its working, mind and body.[1]
3. The Irrationality of the Belief of Immortality.--Occidental minds believe in a mysterious entity under the name of soul, just as Indian thinkers believe in the so-called subtle body entirely distinct from the gross body of flesh and blood. Soul, according to this belief, is an active principle that unites body and mind so as to form an harmonious whole of mental as well as bodily activities. And it acts through the instrumentality of the mind and body in the present life, and enjoys an eternal life beyond the grave. It is on this soul that individual immortality is based. It is immortal Self.