The fact of communication between superhuman beings and the dwellers upon the earth being, it seems to us, proved, we shall now consider how those superhuman beings and men who live on the earth or on the other planets may be brought into relation with each other. It appears to us that this communication is chiefly in action during sleep, and through the medium of dreams. Sleep, that curious and ill-explained state, is the condition of our being during which a portion of our physiological functions, those which establish our connection with the external world, are abolished, while the soul preserves a part of its activity. In this condition, the body being seized by a kind of death, the soul, on the contrary, continues to act, to feel, and to manifest itself by the phenomena of dreams. Now, in the superhuman being, the spiritual portion, the soul, dominates immensely over the material portion. The superhuman being is, so to speak, all intelligence. Man, when he is in the condition of sleep and dreaming, approaches nearer to the superhuman being than when he is in a waking state; there is, then, more resemblance, more natural affinity between them. Consequently communications can be more easily established between these two beings who are drawn together by analogy of condition. There is a saying, the result of repeated observation, which is logical and true. It is, _the night brings counsel_. Is not this as much as to say that it is during the night we receive the secret communications and the solitary advice of those beloved invisible beings who watch over us, and inspire us with their supreme wisdom? It is certain that when we have to make a decision, to unravel a thought, it often happens that we fall asleep in the midst of perplexity and uncertainty, and that the next day we awake, having taken our decision, unravelled our thought, which explains the phrase, _the night brings counsel_. Ancient times, and the middle ages, accorded an extraordinary importance to dreams. They were considered to be sent by God, as His warnings, hence the importance attached to their interpretation. "During sleep," says Tertullian, "the honours which await men are revealed to us; during sleep, remedies are indicated, thefts revealed, treasures discovered."[10] _Visions_ played a great part among Christians in mediæval times. It was during sleep that saints, inspired persons, and devotees received communications of an extraordinary order. We are far from believing that it is during sleep and dreams only that we can feel the presence and the influence of superhuman beings. There are few persons who have not felt, while waking, an unaccountable influence of this kind. We feel a soft, gentle impression, a sort of vague, mysterious push, which excites a spontaneous resolution, a sudden inspiration, an unhoped-for suggestion.