Thus the language of dreams differs; but there is one hint which may be given, and that is that in the wakeful state man is open to outward impressions. For instance, there are moments when the mind is receptive, and there are moments when the mind is expressive. And during the moments when the mind is receptive, every impression from any person is reflected in the consciousness. Very often one finds oneself depressed and cannot find a reason, and then one finds oneself full of mirth and again cannot find the reason. As soon as a person has a certain feeling he at once looks for a reason, and reason is ready to answer him, rightly or wrongly. As soon as a person thinks, "What makes me laugh?" there is something which his reason offers as the reason why he laughed. In reality that impression came from someone else; but he thinks the reason is something different, and so very often in the dream it happens that the reasoning faculty answers the demands of the enquiring mind, and frames and shapes the thoughts and imaginations which are going on so freely when the will-power is not controlling the mind in sleep.