As well as being vital for understanding each other, in my view communication has three components
01. The Language
02. The ability to express
03. The ability understand the senses
We may use all three or any combination of them. And language is not necessary. But it does act as a lubricant to flow a conversation smoothly.
But sometimes we fail to express ourselves, or the social institutions, ethics and cultures have put up constrains and refrain us from letting ourselves out.
In my case I sometime really want to be nasty and let my demon out. Or love deeply, yet fail to do so because I have lack of ability to express myself and inability to understand the senses of the person standing in front of me. Need a 6th sense