Oddly enough, one reason for our unconsciousness involves the very fact that auditory energy is so basic. The auditory channel is set to go, from very early on in life. Even before birth, fetuses in the womb react to sound, startling at loud sounds from outside of the womb. The middle ear bones are the only bones in the body that are fully mature in size at birth. Immediately after birth, human infants are able to hear with considerable differentiation.
Visual differentiation develops over the months, but the auditory channel is ready from the start.
We are also vocal creatures, from the first breath. Our voices sound, in original moments and replayed ones. A myriad of vibrations and rhythms, resonances and silences hold us, vibrate us, move us, all through the life process. Sound is always moving us. Indeed, this fact is a literal, as well as metaphorical, reality.