The song "Mercury & Lightning" by John Mark McMillan portrays the struggles and desires of the protagonist in search of something greater in life. The lyrics express the narrator's pursuit of God, represented metaphorically as chasing "mercury and lightning." This symbolizes the longing for something elusive, powerful, and transformative. The narrator is dissatisfied with their current circumstances and feels like they are constantly falling short. They contemplate the state of their relationship with someone else, seeking understanding and resolution. The desire for a new religion or a new life reflects their yearning for a fresh start or a different belief system that brings meaning and fulfillment. Throughout the song, the narrator mentions hearing echoes of a voice that resonates with them. This voice represents a sense of longing or calling that has been with them since childhood. It is an intangible feeling, like a dream you can't fully recollect or a word on the tip of your tongue. This voice serves as a reminder of the deep longing for purpose and connection. Overall, "Mercury & Lightning" articulates the internal struggle of searching for meaning, seeking resolution in relationships, and longing for a significant change in life. It explores the universal human desire for something greater than ourselves and the need to find purpose and fulfillment.