"Mary's Prayer" would eventually become a Top Ten hit in Britain and Ireland, and was a Top 40 hit in the US.
The song has been described as "an extended Catholic metaphor".
The initial UK release in February 1987 peaked at only number 86, but was a hit in Ireland (number 5), Germany (number 35) and South Africa (number 10).
On 24 September 2014, the members of Danny Wilson performed "Mary's Prayer" at the opening gala for the Ryder Cup at the Hydro Arena in Glasgow, marking the sole performance by the band since 1989.
A remake of "Mary's Prayer" by BBMak served as the B-side of their 2000 Top 10 (UK) hit "Still on Your Side".