This cache is the first in a series of caches named after U2 song names.
This song is the opening track to the 1987 album The Joshua Tree. Lead vocalist Bono wrote the lyrics in response to the thought that it is possible to identify a person's religion and income based on the street on which they lived, particularly in Belfast. It has been interpreted in several ways, including a message of hope and the wish for world without division by class, wealth, race or other arbitrary criteria. It has become one of the bands most popular live songs with over 700 live performances as of 2011!
Hopefully you'll enjoy this puzzle, although I won't be offended if you don't enjoy it as much as the song!
Congratulations to lumdycacher for the FTF!