"Shine a Light On Me" is a quote from the song "The Midnight Special" written over many years by unnamed prisoners at the Imperial State Prison Farm, which later became the Central State Prison in Sugar Land, Texas.
It refers to the Southern Pacific Railroads "Golden Gate Limited", a train that ran from the late 1800's to the 1930's. The westbound train left Houston at 11 PM and shone its headlight light into the prisoners cells as it passed by the prison around midnight.
The light gave the prisoners hope that someday they would be free, so they wrote a song about it.