There is a Latin epigram that goes: Quidquid luce fuit, tenebris agit , in English: what has taken place in the light continues in the dark. The reverse seems also true, though thousands of other epigrams also warn of the illusions that darkness elicits, the insidious workings that can so easily escape our beclouded vision. The riddle cannot be better illustrated through an even more insoluble enigma- that of dreaming. Nietzsche, in 1886, discovered that a man who acquired the ability to fly in his dream related this gravity-defying “upwardness” to an uplifted happiness he felt in his waking moments. From then on that man’s notion of happiness had been dramatically altered- whatever feeling that failed to evoke that peculiar upwardness would seem to him too heavy and, on a superior note, too “earthly.” The entrance of Sigmund Freud, in his audacious quest of unlocking the age-old mysteries of dream, effected a startling change in the psychological study of the subject. ...