"Hostage" by Billie Eilish is a song that explores themes of obsession, desire, and the intense longing for someone. The lyrics depict a person who wants to be alone with someone they are deeply infatuated with, even to the point of crossing boundaries and possessing them like a treasure. The song expresses a desire to hold someone captive, not physically, but emotionally, as if their love is so overwhelmingly strong that it becomes suffocating. Billie Eilish sings about wanting to crawl inside the person's veins, metaphorically implying a desire to be connected on a deep and intimate level. The idea of building a wall and giving them a ball and chain symbolizes the need for control and possession. It suggests that the person is willing to go to extreme lengths to keep them close. The lyrics also touch upon the idea of gold, representing something beautiful and precious that the person desires. The gold on their fingertips and lips signifies the temptation and allure of their presence. However, the mention of gold being fake and real love hurting suggests that the infatuation and fixation may not necessarily be healthy or reciprocated. Overall, "Hostage" portrays a complex and intense love that blurs the lines between desire and obsession. It depicts an individual who is willing to do whatever it takes to keep the person they desire close, even if it means possessing them in an unhealthy and controlling manner.