From the Preface: "Dreams have a part in most of the longer stories. That is because I believe dreams have a part in real life. Some of them we remember as vividly as any actual experience. These belong to the imperfect sleep. But others we do not remember, because they are given to us in that perfect sleep in which the soul is liberated, and goes visiting. Yet sometimes we get a trace of them, by a happy chance, and often their influence remains with us in that spiritual refreshment with which we awake from profound slumber. This is the meaning of that verse in the old psalm: 'He giveth to His beloved in sleep.'"