III. Education Based on Knowledge of the Human Being II
Such an observation alone could show even an abstract thinker that something unknown happens to us in sleep—something that nevertheless plays into our daily lives. It is wrong to surmise that it is impossible to gain exact and clear concepts in this realm. Is it not a clear discovery that dreams echoing earthly reality—the kind so popular among naturalistic poets, ever eager to imitate earthly life, never ready to enter the suprasensory realms—have an unhealthy effect on our waking lives? If impressions from ordinary life reappear in dreams, these dreams have an injurious effect upon our health. On the other hand, if unrealistic dream images appear—the kind scornfully dismissed as mystical rubbish by an intellectualistic philistine—they make us feel bright and fresh upon awaking in the morning. It is certainly possible to observe the strange interplay and the reciprocal effects between dreaming and sleeping.