In a like manner, under the influence of sexual stimuli, the dream brings about satisfaction that shows noteworthy peculiarities.
It is those that are called up throughout life by the imperative needs of the body--hunger, thirst, sexual desire--hence wish fulfillments in reaction to internal physical stimuli.
Mind appears in experience as ability to respond to present stimuli on the basis of anticipation of future possible consequences, and with a view to controlling the kind of consequences that are to take place.
Moreover, all dreams of desire of adults usually contain something besides satisfaction, something that has its origin in the sources of the purely psychic stimuli, and which requires interpretation to render it intelligible.
In these children's dreams nothing points to the influence of such somatic stimuli; we cannot be mistaken, for the dreams are entirely intelligible and easy to survey. But we need not give up the theory of physical causation entirely on this account.