As far then as we can discover in dream consciousness, or in ordinary consciousness, self-consciousness is persistent and pervasive element. In the whole range of consciousness, with the exception of the very evanescent and absolutely primitive pure pleasure-pain series, self-cognition appears. We say, indeed, that a man forgets himself in a rage, but mean merely that the rage object as self-related quite engrosses consciousness to the exclusion of other forms of self-consciousness, as himself related to other selves. Blind with fury to all other objects than the rage object, he does not notice things as related to himself, and he will rush into a stone wall. In the utmost concentration and intensification of emotion, self-consciousness does not disappear, but is itself concentrated and intensified. Even in the delirium of passion, so long as any cognition remains self-consciousness remains. The intensification order in consciousness, that is, where multiple consciousness loses elements through intensifying of some others, bears evidence then to the fundamental nature of self-consciousness. A person roused from sleep by cold, which becomes more and more intense till he loses all consciousness through suffering, is throughout the long series self-conscious with the exception of the initial and the final pang of pain. From the moment when cold made him attain consciousness till the moment when he thereby lost consciousness—that is, practically the time he was conscious—he was self-conscious; this is the verdict of common introspection. Any one who looks back upon his experiences of this intensification nature, finds himself to have been self-conscious throughout. So far then as I have been able to examine them, the modes of coming to consciousness in dream life and in awaking process, and also the order of disappearing consciousness by intensification, confirm the general result which at the opening of this chapter we deduced from a general consideration of psychism under the conditions of existence, namely, that self-consciousness is necessary and important factor in all cognitive process, the self-relating act giving vital value to all consciousness of external and internal object, whether in sensing or perceiving.