Glen Campbell heard songwriter John Hartford's original version of "Gentle on My Mind" playing on the radio and fell in love with this song about memories of a lost love. As is often the case with songwriters, Hartford’s inspiration came from an unusual source: the film Dr. Zhivago. "I know watching the movie gave me a feeling that caused me to start writing, but as far as saying it came from that, I don't know. It just came from experience,” he said. “While I was writing it, if I had any idea that it was going to be a hit, it probably would have come out differently and it wouldn't have been a hit. The song came real fast, in about 15 minutes. It was a blaze, a blur."