"For I have discovered that there are other rivers. And this my boys will not know for a long time nor can they be told. A great many never come to know that there are other rivers. Perhaps that knowledge is saved for maturity and very few people ever mature. It is enough if they flower and reseed. That is all that nature requires of them. But sometimes in a man or a woman awareness takes place — not very often and always inexplainable. There are no words for it because there is no one ever to tell. "
-- John Steinbeck
(see more at Brain Pickings)