Even the term 'by myself' implies that you are 'by' something, With yourself.
Like the self is something external to you. Someone you can sit next to.
I want to be truly alone, without myself. I want the wind to brush past unfollowed by thought or recognition. I want no one to know where I am, even me.
I need to be without myself, Far away from myself. I'm just so relentlessly 'there'.
This poem is about the true meaning of being alone, and the relentlessness of existing in a context.