That is, there is something in the picture which now arises in our mind as a renewal or repetition of the picture made the day before, which makes us immediately cognizant of the cause of the original picture--that is, whether it came from a reality that we witnessed, or from a verbal or written description by another person, or whether it was a fanciful creation of our own mind while awake, or a dream.
And it is extremely difficult for us to discover precisely what it is, in the present mental picture, which gives us this information in respect to the origin of its prototype.

It is very easy to say, "Oh, we _remember_." But remember is only a word.

We can only mean by it, in such a case as this, that there is some _latent difference_ between the several images made upon our minds to-day of things seen, heard of, fancied, or dreamed yesterday, by which we distinguish each from all the others.

But the most acute metaphysicians--men who are accustomed to the closest scrutiny of the movements and the mode of action of their minds--find it very difficult to discover what this difference is.
_The Result in the Case of Children_.
Now, in the case of young children, the faculties of perception and consciousness and the power of recognizing the distinguishing characteristics of the different perceptions and sensations of their minds are all immature, and distinctions which even to mature minds are not so clear but that they are often confounded, for them form a bewildering maze.

Their minds are occupied with a mingled and blended though beautiful combination of sensations, conceptions, fancies, and remembrances, which they do not attempt to separate from each other, and their vocal organs are animated by a constant impulse to exercise themselves with any utterances which the incessant and playful gambollings of their faculties frame.