It was the first Rush song to feature a non-member as a songwriter in Peter Talbot,[3] a friend of drummer and lyricist Neil Peart.

[4] Cash Box called it a "strong song" and said that it is "very like a Led Zeppelin number in terms of structure, timbres, and the role of the lead vocalist.

The band's frontman, Geddy Lee, said of the song:I remember when we had to bring it back into the set for the Rio shows, as there was such a demand to hear it and we'd stopped playing it for a while.

[8] The live albums A Show of Hands, Different Stages, and Grace Under Pressure Tour feature extended instrumental sections after the last verse.

[9] In 2005, Rush performed the song with Mike Smith (in character as Bubbles from Trailer Park Boys) and Ed Robertson of Barenaked Ladies as part of a CBC telethon for the Canadian Tsunami Disaster Fund.