assigned to the inner organic sensations which are wont to be taken as the cardinal point in the explanation of the dream. These — the sensation of falling, flying, or inhibition — stand as an ever ready material to be used by the dream-work to express the dream thought as often as need arises.

That the dream process is a rapid and momentary one seems to be true for the perception through consciousness of the already prepared dream content; the preceding parts of the dream process probably take a slow, fluctuating course.

We have solved the riddle of the superabundant dream content compressed within the briefest moment by explaining that this is due to the appropriation of almost fully formed structures from the psychic life. That the dream is disfigured and distorted by