Nothing exposes the fragility of your thoughts like trying to write them down.
You try to make thoughts stick in your head long enough for you to type them on the page, but your mind helplessly moves on. It has no choice.
Writing to yourself initially feels absurd:
"Who am I talking to?"
"What is the point of writing down what's already in my head?"
It doesn't make sense to be author and audience at the same time. And yet, this is what is happening in our minds 24/7. We are constantly, intently listening to our internal monologue, as if someone is talking to us.