4 definitions
A Dream (n.) plunges without apparent motive into the remote, almost extinct past, while the brain cells carrying the most sensitive marks of experience lie silent.
A Dream (n.) is what we glimpse as separate groups of brain cells wake one by one, unchecked by the rest — so the images come strung together wildly, and grow saner as more cells are freed.
A Dream (n.) is a somatic process — in every case useless and in many cases positively pathological.
Nonsense (n.) fills nine dreams out of ten; we wake, clasp our forehead and wonder whether we can still think rationally.