When one is anxious only to live, he easily, in this solicitude, forgets the enjoyment of life. If his only concern is for life, and he thinks "if I only have my dear life," he does not apply his full strength to using, that is, enjoying, life. But how does one use life? In using it up, like the candle, which one uses in burning it up. One uses life, and consequently himself the living one, in consuming it and himself. Enjoyment of life is using life up.