I Am The Silence

I am being the block
I have been the shh
I was quiet, I was peace, I was silence, I was silence

Can I stop a person
Should I say this is right
Do I reduce sound
Am I lessening
Will I be quiet

Have I confused, have I mixed up
Did I switch off
Could I scare
Would I pacify
Shall I shut the mouth
Might I cut the tongue

I am being unable to be spoken

I will be the block
I must be silence
I should be quiet
I am

What am I
Silence