eeling persist long after the thought or feeling has died away. Or, if
you prefer a more material illustration, we may say that if a package of
perfumery has been opened in a room, and then removed, the air will remain
charged with the odor for a long time afterwards.

So, you see, the same principle applies in the case of psychic vibrations.
The person carries around with him the general atmosphere of his
characteristic mental and emotional vibrations. And, in the same way, the
house, store, church, street, town, or city, etc., is permeated with the
psychic vibrations of those who have frequented them. Nearly every one
realizes the different feeling that impresses him when he enters a strange
house, apartment, store or church. Each one has its own difference of
psychic effect. And, so does each person create his or her psychic effect
upon those coming in contact with him or her, or who comes into his or her
presence or vicinity.

The next question asked by the thoughtful new student is this: If persons
are constantly sending forth psychic vibrations, and if such vibrations
persist for some time, why are we not overwhelmed with the force of them;
and why are they not all so mixed up as to lose all their effect. I shall
now answer this very important question.

In the first place, though we are constantly affected more or less by the
multitude of psychic vibrations beating upon us, still the greater part of
them do not consciously impress us. For an example, we have but to
consider how few of the sounds or sights of a busy street are impressed
upon our consciousness. We hear and see only a few of the things which
attract our attention and interest. The rest are lost to us, although our
eyes and ears receive them all. In the same way, we are impressed only by
the stronger vibrations which reach us, and then only by those which we
have attracted to ourselves, or which prove attractive to us by reason of
our own likes and dislikes.

In the second place, the effect of certain thought vibrations is
neutralized by the effect of the vibrations of thoughts of an opposite
character. Just as a mixture of black and white produces the neutral color
of grey, so do two currents of opposing thought vibrations tend to resolve
themselves into a neutral vibration which has little or no effect upon
those coming in contact with them. You may think of numerous
correspondences to this in the world of material things. For instance, a
mixtur