Now, as they think of these letters, one after the other, watch closely
and you will see their lips move in readiness to pronounce them. There
may be some whose lip-movements you will be unable to detect. If so, it
will be because your eye is not quick enough or keen enough to follow
them in every case.

Have a friend blindfold you and then stand behind you with his hands on
your shoulders. While in this position ask him to concentrate his mind
upon some object in another part of the house. Yield yourself to the
slightest pressure of his hands or arms and you will soon come to the
object of which he has been thinking. If he is unfamiliar with the
impelling energy of thought, he will charge the result to mind-reading.

[Sidenote: Illustrative Experiments]

The same law is illustrated by a familiar catch. Ask a friend to define
the word "spiral." He will find it difficult to express the meaning in
words. And nine persons out of ten while groping for appropriate words
will unconsciously describe a spiral in the air with the forefinger.

Swing a locket in front of you, holding the end of the chain with both
hands. You will soon see that it will swing in harmony with your
thoughts. If you think of a circle, it will swing around in a circle. If
you think of the movement of a pendulum, the locket will swing back and
forth.

These experiments not only illustrate the impelling energy of thought
and its power to induce bodily action, but they indicate also that the
bodily effects of mental action are not limited to bodily movements that