One of the great depression metaphors, in this song where Dio is feeling isolated and trapped, unable to release the tremendous potential inside him - like a rainbow in the dark.

Dio has mentioned his time as Black Sabbath lead singer as inspiration for the lyrics; he felt  "rejected" when he left the band.

Ronnie Janes and Sabbath drummer Vinny Appice,  formed Dio in 1983.

Dio "live' and from his album 'Holy Diver', "Rainbow In The Dark":