from it—Prana is in these things fulfilling the great law of Nature, and man's ability to extract a portion of it and use it is merely an incident. The force would exist though man were not.
This great principle is in all forms of matter, and yet it is not matter. It is in the air, but it is not the air nor one of its chemical constituents. Animal and plant life breathe it in with the air, and yet if the air contained it not they would die even though they might be filled with air. It is taken up by the system along with the oxygen, and yet is not the oxygen.
Prana is in the atmospheric air, but it is also elsewhere, and it penetrates where the air cannot reach. The oxygen in the air plays an important part in sustaining animal life, and the carbon plays a similar part with plant life, but Prana has its own distinct part to play in the manifestation of life, aside from the physiological functions.
We are constantly inhaling the air charged with prana, and are as constantly extracting the latter from the air and appropriating it to our uses. Prana is found in its freest state in the atmospheric air, which when fresh is fairly charged with it, and we draw it to us more easily from the air than from any other source. In ordinary breathing we absorb and extract a normal supply of prana, but by controlled and regulated breathing (generally known as Yogi breathing) we are enabled to extract a greater supply, which is stored away in the brain and nerve centers, to be used when necessary. We may store away prana, just as the storage battery stores away electricity. The many powers attributed to
