Songfacts®:

• The last song on Black Sabbath's fittingly titled album Vol. 4, the lyrics deal with everything from religion to violence. Ozzy Osbourne was their frontman at the time, but bass player Geezer Butler wrote their lyrics.
• Look no further if you're seeking a song that helped forge the sound of heavy metal. The "Under The Sun" portion has a rumbling intensity that carries a lot of weight; "Every Day Comes And Goes" has a monster guitar riff from Tony Iommi and some big fills by drummer Bill Ward. These guys came on the scene in 1969 and released their first two albums in 1970. They got the Heisman from radio stations but still developed a substantial fan base that grew over the next few years. They had some down years in the late '70s, and Ozzy was booted in 1979, but they found new life with Ronnie James Dio out front. And Ozzy did pretty well for himself as a solo artist.
• In a Songfacts interview with Geezer Butler, he described Vol. 4 as a "cocaine album."
  
  "If one of us had an idea, no matter what time of the day or night it was, you'd get up and play your idea to the rest of them," he said. "If you were really tired, you'd do a few 'toots.' It would probably get you through playing together, any particular time of the day or night."