Now, perhaps, we find ourselves zealously advocating some cause, now very fierce in denunciation, now very amusing in witty repartee, and so on.

This imagination of ourselves as speaking, as distinguished from that of hearing others talking, must, it is clear, involve the excitation of the structures engaged in the production of the muscular feelings which accompany vocal action, as much as, if not more than, the auditory centres.

And the frequency of this kind of dream-experience may be explained, like that of visual imagery, by the habits of waking life.

The speech impulse is one of the most deeply rooted of all our impulses, and one which has been most frequently exercised in waking life.
_Combination of Dream-Elements._ It is commonly said that dreams are a grotesque dissolution of all order, a very chaos and whirl of images without any discoverable connection.

On the other hand, a few writers claim for the mind in sleep a power of arranging and grouping its incongruous elements in definite and even life-like pictures.