Dreams
Dreams are successions of images, ideas, emotions, and sensations that occur involuntarily in the mind during certain stages of sleep. The content and purpose of dreams are not definitively understood, though they have been a topic of scientific speculation, as well as a subject of philosophical and religious interest, throughout recorded history. The scientific study of dreams is called oneirology. Scientists believe that, in addition to humans, certain birds and the majority of mammals also dream.
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Famous quotes containing the word dreams:
“Our dreams are a second life. I have never been able to penetrate without a shudder those ivory or horned gates which separate us from the invisible world.”
—Gérard De Nerval (1808–1855)
“What we do in our dreams we also do when we are awake: we invent and make up the person we are dealing with—and immediately forget that we have done it.”
—Friedrich Nietzsche (1844–1900)
“Unfortunately, the balance of nature decrees that a super-abundance of dreams is paid for by a growing potential for nightmares.”
—Peter Ustinov (b. 1921)