XII

This Atman (Self), hidden in all beings, does not shine forth;
but It is seen by subtle seers through keen and subtle
understanding.

If It dwells in all living beings, why do we not see It? Because the ordinary
man's vision is too dull and distracted. It is visible to those alone whose
intellect has been purified by constant thought on the Supreme, and whose
sight therefore has become refined and sharpened. This keenness of vision
comes only when all our forces have been made one-pointed through steadfast
practice of concentration and meditation.

XIII

A wise man should control speech by mind, mind by intellect,
intellect by the great Atman, and that by the Peaceful One (the
Paramatman or Supreme Self).

Here Yama gives the practical method to be followed if one wishes to realize
the Supreme. The word "speech" stands for all the senses. First, therefore,
a man must control his outgoing senses by the mind. Then the mind must be
brought under the control of the discriminative faculty; that is, it must be
withdrawn from all sense-objects and cease to waste its energies on
nonessential things. The discriminative faculty in turn must be controlled by
the higher individual intelligence and this must be governed wholly by the
Supreme Intelligence.