Reminds me of Led Zep in a weird way - the swaggering confidence and "loose tightness" of the music, crossed with the keening, paranoia of the singing. The lyrics are about as complex as rock music gets, understanding our glorying in "progress" - admittedly to, I presume, tacitly condemn it, but without ever actually saying, "Western civilisation is bad". It feels more like a weary acceptance: "You fix one problem, it causes another. There is no good and evil in societies as a whole, we just choose our own path within what we're born into." Just overwhelming in its power as a slab of rock.