Otherwise God would be
a universal natural substance, something non-rational; psychological experiences, excitement and ecstasy, devotion and joy, would be interpreted as communion with God.
So Büchner says: «Thinking must be regarded as a special mode of general
natural motion, which is as characteristic of the
substance of the central nervous elements as the motion of contraction is of the nerve -
substance, or the motion of light is of the
universal - ether....