To sum up, the unconscious is a collection of mental processes, memories, desires, and influences of infinite variety which are not always or even often perceived as such by our conscious mind, but the presence of which may and does influence our thoughts and actions. By its aid we obtain results the factors of which are unknown to us, and of which we fail to recognise the origin, and in it is stored not only what we remember but also what we forget. It is in relation to our stream of consciousness and normally blends with it, but the more independently we can allow it to operate the more surely does it reach its end in certain cases. I must add that Freud introduces a _foreconscious_ to indicate the mind-contents which are accessible to the consciousness, but are not of it, but for the sake of simplicity I have avoided the use of that word. The reader must bear in mind that such terms are used to describe not phenomena, but conceptions. Newspapers, the voices of men in the train or the street, marks on ballot-papers, are all phenomena, but 'public opinion' is only a conception useful to facilitate the expression of ideas. If one asks, 'Where is this unconscious and what does it look like?', I can only answer by asking, 'Where is this "public opinion" and what does it look like?' The same caution is necessary in regard to other phrases. The stream of consciousness and dissociation are conceptions only, and are not intended to indicate the existence of things having relation to each other in space; the words are used as convenient means to sum up processes which I hope to show really take place. CHAPTER II COMPLEXES Every man likes to think that his creed, religious, political, or social, is founded upon reason; but let the reader consider the beliefs of his acquaintances and he will soon realise that they depend far more upon early training, social position, and the general influence of surroundings than upon any reasoning process. After this exercise let him turn his critical powers upon his own beliefs and examine closely how far they are dependent upon reason or upon influences which he has not recognised before.