vibrations of matter, and by this control to evoke the desired

changes in consciousness. The weak point in Hatha Yoga is that
action on this line cannot reach beyond the astral plane, and the
great strain imposed on the comparatively intractable matter of
the physical plane sometimes leads to atrophy of the very organs,
the activity of which is necessary for effecting the changes in
consciousness that would be useful. The Hatha Yogi gains control
over the bodily organs with which the waking consciousness no
longer concerns itself, having relinquished them to its lower
part, the " subconsciousness', This is often useful as regards
the prevention of disease, but serves no higher purpose. When he
begins to work on the brain centres connected with ordinary
consciousness, and still more when he touches those connected
with the super-consciousness, he enters a dangerous region, and
is more likely to paralyse than to evolve.

That relation alone it is which makes matter cognizable; the
change in the thinker is answered by a change outside, and his
answer to it and the change in it that he makes by his. answer
re-arrange again the matter of the body which is his envelope.
Hence the rhythmic changes in matter are rightly called its
cognizability. Matter may be known by consciousness, because of
this unchanging relation between the two sides of the manifest
LOGOS who is one, and the Self becomes aware of changes within
himself, and thus of those of the external words to which those
changes are related.