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dimensions, weights etc in the same manner, Agni Käyika and Văyu-Kāyika Jivas are of various densities, colours, weights, dimensiors etc. For instance, the intensity of heat in the fire of (1 grass (2) wood-charcoal 3) cow-dung fuel (4) mineral coal obtained form coal-mines and 15) Electric Light is different. Similarly Bādara Vāyu Kayika Jivas are of various densities.
Jaina authors have mentioned two main types of Vāyu (wind) viz 1 Ghanayāta grata Heavy or Thick wind and (2) Tanuvāta agara Light or Thin Rareified Air according to their densities. The present-day scientists (4) also say that, as we go higher and higher from sea-level, the atmospheric air becomes more and more rareified than that met with at the surface of the ground; and such is the general experience of aero-plane drivers. The dense atmosphere of ground-level is largely mixed with rareified air.
2. One kind of air may be beneficial to the support of life in one kind of Agni Kāyika body, while it may destroy life in another. For instance, a gust of wind will instantly put out the flame of an ordinary lanıp, while the same gust of wind will put energy into withering ainbers of a pile of wood, and re-kindle them into a blazing flame.
3. Agni Kāyika Jivas cannot live without air. They must have air to support their individual life. If the kind of air that that they require for the support of their life, be different, and if the quantify be more or less than their requirements, their life will be extinct.
4. Now, the question of electric light is different. Electric light, is extremely pure, clear, and highly escharotic. It cannot bear ordinary atmospheric air. When air is removed from electric glass-bulbs, there always remains a sufficient quantity of rareified air in the bulbs which keeps the electric light burning. It is the presence of rareified air that makes electric light bulbs sa-cita,