Do you feel like you know yourself?

I am my best friend. It’s like I’m two people. One is my body and one is my mind. I feel a comfortable connection between the two and I am the body. It’s like having a best friend… or better yet, a twin. They depend on one another and if one is gone, the other won’t know what to do with itself.
Does anybody else feel like this or is it just me? Please don’t say that I need some sort of help, I’m fine the way I am.