<P> "Iron Man" is a song by British rock band Black Sabbath . It is taken from their second studio album, Paranoid, released in 1970 . It was later included on their initial greatest hits compilation We Sold Our Soul for Rock' n' Roll (1976), as well as all subsequent greatest hits compilations; The single version was included on the Greatest Hits 1970--1978 album . </P> <P> Upon hearing the main guitar riff for the first time, vocalist Ozzy Osbourne remarked that it sounded "like a big iron bloke walking about". The title became "Iron Man", with Geezer Butler writing the lyrics around the title . </P> <P> Butler wrote the lyrics as the story of a man who time travels into the future, and sees the apocalypse . In the process of returning to the present, he is turned into steel by a magnetic field . He is rendered mute, unable verbally to warn people of his time in the future and of the impending destruction . His attempts to communicate are ignored and mocked . This causes Iron Man to become angry, and drives his revenge on mankind, causing the destruction seen in his vision . </P> <Ul> <Li> The song won spot number 317 in Rolling Stone's list of the 500 Greatest Songs of All Time . </Li> <Li> The song peaked at number 52 on The Billboard Hot 100 in 1972 . </Li> <Li> VH1 ranked the song as the greatest heavy metal song of all time . </Li> </Ul>

What is the meaning of iron man by black sabbath
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