Hi, the song is Cheer Down. It was produce by Jeff Lynne and George Harrison, for the soundtrack of Lethal Weapon 2.
During the cloud nine sessions, the backing tracks of the song were recorded by Harrison, but the lyrics weren't complete until tom petty showed up. Tom was a member of the Traveling Wilburys, a band that also featured Harrison as a member.
When Eric Clapton was hired to score lethal weapon 2, he used the melody of the song but with new lyrics.
"With love's light wings did I o'erperch these walls" is an example of a hyperbole. Hyperbole is among the many figures of speech in which it refers to the exaggeration of some scenes with the aim of spreading humor and fun.