[2] During March 1990, Big Country spent time recording two new songs, "Save Me" and "Heart of the World", at Livingston Studios in London.

Speaking of "Heart of the World", bassist Tony Butler told the Aberdeen Evening Express in July 1990, "It's a simple song about belief in oneself.

[7] Upon its release, David Giles of Music Week considered "a small hit [to be] on the cards for this standard, slightly anthemic, Adamson composition".

"[9] David Ewen of the Aberdeen Evening Express described "Heart of the World" as "a strong song, rendered in [Big Country's] own inimitable style".

[5] Jon Homer, reviewing the single for Channel 4's Teletext service, described the song as "another slice of anthemic guitar rock that manages to be as powerful as the loudest heavy metal band, but several times more effective and intelligent".