“The question is, (1) Are there psychological processes in us, the development of which presents itself with immediate certainty as necessary, and (2) can we reduce all the individual and with them all the spiritual phenomena to such spiritual processes recognised as necessary? The first question can be affirmed, although only in a limited sense, and the second question must be unequivocally denied, thus making an immediate explanation of psychical phenomena impossible” (p. 107). The first question is to be affirmed in a limited sense, because “if certain premises are thought, the conclusion, it appears to us as a necessity, can be thought thus and not otherwise” (p. 108). But this is “a logical and not a psychological necessity.” To actually think the conclusion depends upon the will to think it. The will actually existing, the logical necessity becomes a psychological, for “the connection between the willing and the willed (_zwischen Willen und Gewolltem_) always appears to us as necessary.... Where there is inner will there is an inner necessity.” Now, in order to make explanations in the physical world, we supplement that which has been actually observed with not-observed connections. But we cannot, according to Münsterberg, in an analogous way supplement in the world of psychical phenomena the conscious states with any other kind of states which are not conscious, thus referring our spiritual life and acts of will to unconscious processes, for “the very nature of psychical states is consciousness, i. e. a state of being conscious. _Ihr Sein ist das bewusst-sein...._ A state of consciousness, says Münsterberg, which is not conscious, is comparable not to a body which is not perceived, but to one which does not exist. Accordingly unconscious psychical phenomena do not exist. All psychical phenomena are directly given and the reduction of their combinations in a certain way through hypothetical psychological supplements is once for all excluded” (p. 110).