If one admits that the influence of the outside world is essentially beneficial, the lack of such influence during sleep would tend to diminish the value of our dream activity so as to render it inferior to the mental activity that takes place when we are awake, when we are exposed to these beneficial influences of surrounding reality. But how can one say that the influence of reality is exclusively beneficial. Could it not also be damaging, and could its absence not give access to qualities superior to those that we have when awake?