You live like this, sheltered, in a delicate world, and you believe you are living. Then you read a book… or you take a trip… and you discover that you are not living, that you are hibernating. The symptoms of hibernating are easily detectable: first, restlessness. The second symptom (when hibernating becomes dangerous and might degenerate into death): absence of pleasure. That is all. It appears like an innocuous illness. Monotony, boredom, death. Millions live like this (or die like this) without knowing it.