Meaning of "Knock on Wood" by Prefab Sprout

The lyrics of "Knock on Wood" by Prefab Sprout delve into the complexities of relationships and the fragility of promises made within them. The imagery of walking a thousand miles and leaving someone on the roadside conveys a sense of distance and abandonment. The repetition of swearing never to leave and then eventually breaking that promise highlights the inevitable human tendency to change and evolve. The mention of climbing a ladder and finding another angel implies a continuous search for something better, only to realize that the grass isn't always greener on the other side. The phrase "Knock on wood" is a superstitious act meant to ward off bad luck, suggesting that making bold statements about the stability of a relationship is risky and should be handled with caution. Overall, the lyrics seem to explore the transient nature of human emotions and the uncertainty that comes with love and commitment.