After hearing the song, instrumentally, it is awesome. They are the METAL GOD'S! Lyrically, i see it in two ways:
I see it as simply what the title says. The world is not a place of pleasure, for it is always forcing us to abide by their standards. I agree with darkmusicman
In the context of Rob Halford (but not just this song) it is a reference to his sexual orientation. The song is not about homosexuality, but Halford's sexual orientation helped him see world different than most people.
After hearing the song, instrumentally, it is awesome. They are the METAL GOD'S! Lyrically, i see it in two ways: