The song "Undo My Heart" by Karen Harding and Digital Farm Animals expresses the transformative power of love and the healing it can bring to a broken heart. The lyrics illustrate a journey of emotional growth and self-reflection. At the beginning of the song, the singer admits that love used to drive them insane, implying past heartbreak and a reluctance to open up to love again. However, with the introduction of a new person into their life, everything changes. The singer feels a shift in their direction, realizing that they haven't done anything wrong in the past and that their previous pain and hurt can now be undone. The chorus emphasizes the significant role this new person plays in the singer's life. They are the only one capable of erasing the hurt and putting the singer back together, piece by piece. The repetition of "Only you undo my heart" underscores the exclusivity of this person's ability to heal the singer's emotional wounds. The lyrics also depict a sense of liberation and escape. The singer acknowledges that their feelings were once tied up, keeping them trapped in emotional turmoil. However, with the touch of this new person, they can now break free and find solace. Overall, "Undo My Heart" portrays a story of finding love and experiencing its ability to heal past wounds. It highlights the transformative and redemptive power of love, conveying that sometimes all it takes is the right person to undo the pain and mend a broken heart.