I have been reading over this chapter and all I can say to my readers is, as a substitute for leaving it out, that I hope it sounds to them like a fairy story. I like to think when I am going on from chapter to chapter in a book--I like to keep thinking of my readers how rational they are. The principles underlying what Mr. Alexander does with new brain tracks and what I am trying to do can be discussed in this book. The facts can be looked up and are suitable subjects not for books but for affidavits. VI REFLECTIONS ON THE STAIRS It is a not unfamiliar experience for a man to go to a dentist, get into a chair and point to a toothache in the upper right or northeast corner of his mouth and have the dentist tell him that the toothache he thinks he is having there is really in the root of a tooth in the right lower or southwest corner. Then he pulls the southwest corner tooth and the northeast corner toothache is over. (These figures or rather points of the compass may not be literally right, but the fact that they point to is.) Nearly every man has had things happen to him not very different from this. You have a bad lameness in your right knee and the wise man you go to, tells you that you are deceived about the real trouble being in your right knee, calls your attention to a place three and a half feet off way up on the other side of you, says you should have a gold filling put in a tooth there and your right knee will get well. What seems to be true of people is that though in a less glaring and more subtle fashion, there are very few of us who are not subject either all or part of the time to more or less important and quite unmanageable illusions about things with which we are supposed to be--if anybody is--the most intimately acquainted. One keeps hearing every few days almost, lately, of how people's inner organs are not doing what they think they are, of how very often--even the most important of them have been mislaid--a colon for instance being allowed to do its work three inches lower than it ever ought to be allowed to try, and all manner of other mechanical blunders that are being made, grave mechanical inconveniences which are being daily put up with by people, when they move about or when they lie down, of which they have not the slightest idea.