Author Mick Wall wrote that the song features a "door-slamming riff that wouldn't have been out of place on Paranoid"[1] (the band's second album, released in 1970).
[2] Following the song's sudden cutoff, the album segues immediately into the next track, "Don't Start (Too Late)",[1] an acoustic instrumental that runs for under a minute in length.
Wall asserts that the abrupt ending of "Hole in the Sky" emphasises "the sheer anger of the song".
[1] Author Mick Wall wrote that, in the song, "Ozzy rants and raves about going through a hole in the sky, 'seeing nowhere through the eyes of a lie.
'"[1] Philosopher and writer William Irwin characterizes the song as having themes of "cosmic travel"[3] and "apocalyptic warfare".