The thinker is in the same position as the speaker, whose voice in the air sets in motion sound waves that go out in all directions and convey its message to anyone within earshot.
The distance to which his voice drifts depends on the strength and clarity
of the pronunciation. A strong thought will, of course, go much further than a
weak and indeterminate one, but clarity and purpose are of greater importance
Just as a speaker preaches deaf ears, when listeners think of their
personal affairs, so too can a strong thought wave pass by without touching the
mind of the man who has already given his thoughts a direction.
It must be understood that these radiant vibrations convey the character,
but not the subject of the thought. When a Hindu sits down and is immersed in
the profound worship of his god, then the waves of emotion which emanate from
him, all those who come under their influence, inspire pious feelings, although
in the Mohammedan this devotion to Allah, a parsing of Ahuramazda and extends
to Jesus at a christ.
A person tense about a high object emits thought waves that seek to arouse similar high thoughts in others, but they do not make those others aware of the subject of their thinking. Of course, they have a strong influence on those who have already become accustomed to vibrations of a similar character; however, they have a corresponding effect on every mental body they encounter.
So they have the tendency to put the power of the higher ideas in the people in whom it has not yet appeared.
It is obvious, then, that every noble-thinking person serves, albeit unconsciously, the whole of humanity.