What's My Blog For?

Hi fellow Hivians,

Could someone kindly explain what my Blog is for and how to use it most effectively?

So I know what a normal blog is, but not how I would use my hive blog.

If I create a post in my Community, then I have the option to Cross Post it to another community, or even add it to my Blog. But not the other way around.

It seems that if I post something to my Blog, it goes to an obscure hole that no one else would see unless they specifically, for some unknown reason, come and look at my profile.

If I post something on my Blog, I don't have the option to later Cross Post it to try and raise awareness of my post.

So I'm curious how others use their blog and how they gather awareness of it?

Many thanks,
Dave