Life is “experienced” as vibration or sound.
The essence of life itself is not vibration though.
The essence of life is “unknown/unknowable” (because it is subtler than all instruments) but it causes vibration when it permeates/communes/infuses with “matter/instruments/structures”.
The enlivening non-physical life energy causes the vibration/reverberation of the instrument, that results in the emanation/radiation of its sound.
The object’s/being’s structure and its sound radiation arise concomitantly depending on the life energy permeating it.
Just like how, as soon as you plug in your radio, the sound emanation starts from the speakers.
Greater life energy permeation will change the very structure of the object/being.
This is known as transformation in spiritual circles.
The best analogy for this is the phenomenon of Cymatics.
As the frequency of vibration of the plate is increased, the sand on the plate takes on more and more intricate structures.
As the frequency is raised, the previous structure goes into chaos, but when the higher milestone frequency is reached, a new structure emerges that is even more intricate and complex.
So if the life energy in you starts to raise its power and increase your vibration, you will go through transformation, your whole body structure will change.
We sense sound against the background of silence.
Like how you only hear a clock tick because of the silence underneath the tick.
There is also a relativity here.
You hear something only to the extent that it raises sound above your baseline level of silence.
Like say there is a fan running creating 45db of sound. If that is your base, that will drown out all the sounds under 45db. So you will consider that level to be the silent base wrt. all the other sounds that you hear.
Similarly, the intensity with which we experience life/sound, depends on how silent we are.
The more silent we are, the more intense the sounds will be.
Another interesting aspect is about the discrimination of sound.
Absolute silence would allow for absolute discrimination of sound.
To really listen/hear something in its entirety, you have to be totally silent.
The last related point I wanted to make:
You perceive the world, others, and objects, only relative to your own level of vibration, your own capacity to hold life energy.
A high frequency being can perceive a low frequency being in far higher resolution than the low frequency can perceive the high freq being.
Translating that to the ‘sound’ context, my ears can hear a tuning fork vibrating, because the vibration of my ear instrument is far subtler than the vibration of the tuning fork.
So it is that difference that I perceive to be the sound of the tuning fork.
So all perception is relative.
Finer your instrument, the more you can hear life.
So if you think about it, absolute silence is “infinite vibration”.
So silence being infinitely subtle vibration, it is capable of perceiving all other vibration.
It is like having the ultimate ear, that can hear all other ears too.