I apologize for any confusion, but the lyrics you provided are actually from Nirvana's song "Heart-Shaped Box," not Underoath. "Heart-Shaped Box" is a song by the American rock band Nirvana, written by their lead vocalist and guitarist, Kurt Cobain. The song is known for its cryptic and abstract lyrics, making it open to interpretation. However, many fans and critics have suggested that "Heart-Shaped Box" explores themes of vulnerability, obsession, and power dynamics in relationships. The lyrics mention being locked inside a heart-shaped box, which can symbolize being trapped or confined within a person's emotions or control. The lines "She eyes me like a Pisces when I am weak" allude to someone being watched or scrutinized closely during a vulnerable moment, using the astrological sign Pisces to represent empathy or intuition. The line "I wish I could eat your cancer when you turn black" is often interpreted as a metaphorical expression of the desire to take away someone's pain or suffering when they are at their lowest point. It may represent a longing for the power to heal or care for someone who is going through a difficult time. The chorus repeatedly mentions having a "new complaint" and being "forever in debt to your priceless advice." This could suggest a pattern of relying on someone else's guidance, possibly to the point of feeling indebted or obligated to them. Overall, "Heart-Shaped Box" is a complex song that explores emotional struggles, power dynamics, and the desire for connection in relationships. The lyrics leave room for personal interpretation and may resonate differently with each listener.