Its a plilosphical phrase that loosely means to understand without having to ask. That means you know something, or you understand something without being taught about it. Its similar to when people say "You don't have to explain. I get it." Its a deeper understanding of something without extended knowledge.
A homograph of "to be silent" is the word "mute," which can also mean to be silent or unable to speak.
'Silent night' is supposed to mean (and does indeed mean) that the night in question was quiet and peaceful.
Silent means very quiet, so any words that mean "quiet" can be modified to mean silent. Other options are hushed, noiseless, or soundless.
what does silent dancing really mean
silent but deadly
means silent
Don't know what you mean by silent chain.
Did you mean 'insight', as in mental perception?
The appearance of beauty to you.
made silent.
To make no noise whatsoever.
silent