On Expression

It seems to me that expression is a funny thing. By funny, I do not mean funny ha-ha. I mean it is odd or peculiar at times- but often difficult and obscure. Do we really want to communicate when we express ourselves? Or do we just want to unload something off of our chests? Hmmm...
Here's me showing up. I don't know what I'm doing? I just showed up and started typing. But why is it that I am typing?