What's the Theory on Silence?

I don't know what it's doing or cause i do have a very cynical part of me that wants to reduce it. What's the theory on it though? I mean, that's the part where, to me, it's just so m i can't understand it at all. No matter what you're thinking, if you can let go of ityou can always let go of a thought - which means it's not permanent. So when you do letgo of a thought, then what? Another thought arises. But the letting go itself is moving more deeply into that space. It's a constant moving in, moving back, let im go, moving and letting go, moving.