It says that the Federal Government can't infringe on the ability of the States to keep and maintain a militia, in my opinion. But that's an argument you and I have talked over for years, DK. It specifically mentions "The People", but that's not a term that used elsewhere in the Constitution and one that's never really been defined.
And that you need to actually ask questions and not post links in your original posts so that we know what the hell you want to talk about.