ABSTRACT
We have seen that on the level of simple instinct, in the case of the higher animals, the human child and the human adult in certain circumstances, there is a direct cycle of perception, feeling and response. The hard knocks of the real world sooner or later bring about some practical appreciation of the difference between images and perceptions, and the sophisticated and civilised adult takes his images much less seriously, coming to look upon them as purely subjective phenomena. Images are, moreover, a very important instrument for securing fuller and more adequate responses to the conditions of the real world, for they form part of the machinery of memory and anticipation and of the thought processes. In true recollection memory becomes explicit and the past is recalled as such, independently of present sensation. This may take place in the form of free images.
