How valuable is the peace we obtain in sleep! We cannot realize this until we long for sleep which will not come. At such a time we shall realize that everything we possess in the world is worth sacrificing for the peace which sleep brings and the happiness we experience then. All the pleasures in the world afford only a glimpse of that happiness which is within us, in our innermost being. In our everyday external life that happiness is as buried. If there is a time when happiness is experienced by the soul, it is the time during which we are asleep. The little happiness we experience in this world is not real, but only a shadow which we call pleasure, whereas the true happiness which we experience by our natural life we do not call happiness, for we do not know what it is. Only its after-effects remain with us, and we feel happy when we come to the wakeful state after having had a good sleep.