How do you say exactly what’s on your mind? How do you give your listener the exact picture that you’re seeing? That exact array of emotions?
And once another person has heard you, whatever you said becomes toothpaste. You can’t cram the words back in your mouth and swallow them out of existence, no matter how much you want to do so later.
Generally, you have to convince yourself to talk. That talking it out would help you with your problem. You talk yourself into talking. And all the while, your heart pounds like a drum and your throat feels scratchy and you sound squeaky like a boy who hasn’t hit puberty yet.
When you do manage to string two words together and spew them out with sound, it comes out wrong. Of the ocean you want to convey, you barely outline a puddle.
And you realize how futile speaking your mind is. The other person might listen but is not going to understand.
So you trail off, have your palate give your tongue a hug and silently brood on.