The song "Girl of Mine" by Engelbert Humperdinck describes the deep love and affection the singer feels towards his partner. The lyrics convey the emotions and actions of the singer as he watches his partner peacefully asleep beside him. He admires her beauty, with moonlight shining on her hair and her hand resting on the pillow. The singer gets overwhelmed with a warm feeling, so intense that it almost brings him to tears. In that moment of intensity, he kisses her sleeping lips and expresses his love for her until the end of his life. The chorus mentions how the singer desires to turn off the light and make love to his partner. He sees this act as a way to strengthen their bond and suggests that they will always be connected through their affectionate union. The line "Down last road we'll go" signifies the journey they will embark on together, while "you'll always know" represents the assurance that she will always be aware of his love for her. The lyrics also acknowledge the flaws in their relationship. Sometimes, when things go wrong, the singer may hurt his partner and walk away, leaving her to face a lonely night. Despite this, he acknowledges that he wouldn't blame her if she chose to leave him. However, upon his return, he finds her still faithfully waiting for him. Overall, the song portrays a deep, unwavering love and the commitment the singer feels towards his partner, even during difficult times. It showcases his remorse for any pain he may cause, his appreciation for her loyalty, and his desire to strengthen their bond through love and intimacy.