In English
The Origin Of Primary Elements
The sound that appeared first in the creation was created by vibrations caused by the rain. But some sounds are audible while others are inaudible. For example, there is a sound when we bat our eyelids even though it cannot be heard by the human ear. The sound generated by vibrations at one point spread all over in all directions. For instance, if you throw a stone in water, it will create continuously spreading ripples (waves) all around similar to the sound waves in space.