ABSTRACT
Brain and mind which are interrelated with each other in becoming and activity; or, at all events, to this specific state of the brain there corresponds a quite specific state of the mind, indicated by a specific state of conscious experience. Indeed, many understand, inaccurately, by 'parallelism' nothing but such a uniform correspondence. It is certainly true that states of the brain, which derive from stimuli of the sense-organs and the sensory nerves, are uniformly related to mental states which are called sensations or direct perceptions. Moreover, in the mechanical realm one and the same 'resultant' can originate from the most various forces. And the mind, or rather its natural correlate, the psychoid, is a 'manifoldness' in itself, an 'intensive manifoldness’, whose own motive power is indeed not itself mechanical, but discharges itself into mechanical nature.
