In English
Sound is very subtle. Air was evolved from vibrations caused by sound in space. Friction between air and sound generated heat, and from heat, water was formed. When you have fever, you get perspiration after the fever is reduced. This is the relation between heat and water. This analogy shows that fire comes from water. Water is more dense than air. As water became more dense, it formed the earth element. Of all the elements, earth is the most gross and (sky) is the most subtle. is everywhere, it is within us, below us, above us and all around us. It pervades the entire space. Earth was formed from water, and from the earth water arose. The earth became like a container to hold water. New forms emerged from the combination of earth and water. As the heat decreased, liquid materials solidified to form hard rocks. The study of this process was called physical sciences.