He didn’t mean anything at all. That was the brilliance of the Nazi propaganda machine. They stole words that referred to popular things and said them enough times in relation to themselves that they lost all meaning.

Its exactly the same as how the modern day right wing say anything that supports them is “patriotic” and anything that doesn’t is “anti-[country]”. If they say the word “patriotic” enough times, it loses all meaning & makes it impossible for opponents to argue against, because you can’t have a rational debate when language is meaningless.