Pop/Rock with significant classical guitar influence.
Sting has described the song as a story about a who gambles not for wealth or fame, but to find a "mystical logic" or religious law within luck and chance. Sting - Shape of My Heart
The song maintains a pensive, melancholy mood, occasionally shifting toward more hopeful relative major keys. Legacy and Cultural Impact Sting - Shape of My Heart (Official Music Video) Pop/Rock with significant classical guitar influence
The central hook ("But that's not the shape of my heart") refers to the literal difference between a stylized heart on a playing card and a real human heart—a conflict between reality and fantasy. Musical Composition Sting - Shape of My Heart