““Human beings want not only to survive, but also to live. We long to experience life in all its vividness, with full, untrammelled emotion. Adults envy the open-hearted and open-minded explorations of children; seeing their joy and curiosity, we pine for our own lost capacity for wide-eyed wonder. Boredom, rooted in a fundamental discomfort with the self, is one of the least tolerable mental states. For the addict the drug provides a route to feeling alive again, if only temporarily. “I am in profound awe of the ordinary,” recalls author and bank robber Stephen Reid of his first hit of morphine. Thomas De Quincey extols opium’s power “to stimulate the capacities of enjoyment.””