Happiness is that state of consciousness which proceeds from the achievement of one's values.
Ayn RandIn western civilization, the period ruled by mysticism is known as the 'Dark Ages' and the 'Middle Ages'. I will assume that you know the nature of that period and the state of human existence in those ages. The Renaissance broke the rules of the mystics. "Renaissance" means the "rebirth". Few people today will care to remind you that it was a rebirth of reason - of man's mind.
Ayn RandPeople, he thought, were as hungry for a sight of joy as he had always been--for a moment's relief from that gray load of suffering which seemed so inexplicable and unnecessary. He had never been able to understand why men should be unhappy.
Ayn RandFor centuries, the mystics of spirit had existed by running a protection racket - by making life on earth unbearable, then charging you for consolation and relief, by forbidding all the virtues that make existence possible, then riding on the shoulders of your guilt, by declaring production and joy to be sins, then collecting blackmail from the sinners.
Ayn Rand