If you are a blogger, you already know about this thing. The Threshold. This unspoken rule that says that some things are important enough to write about, while others aren't. The thin dividing line that separates things one write about and things one don't.
It's useful to think about this threshold. Mostly because you learn a surprising amount about yourself while doing it. Especially about those thoughts about how you think.
It gets somewhat circular after a while. This is good - a big part of learning is becoming familiar with things, and returning to these things/thoughts familiarizes them indeed.
The thing to remember, though, is that there is no need to get rid of this threshold. Not only because it's impossible, but also because writing by its very nature is always is about something in particular. Even general musings are about something, by virtue of being grammatical.
The concept of the threshold can be applied on a more general level, though. There are things we do, things we don't do, and a thin yet crucial dividing line between them.
It is a healthy thing to step out of this line every once in a while.