"Rat Castle" by Glass Beach is a song that explores themes of confusion, uncertainty, and the struggle to understand oneself and others. The lyrics reflect the singer's feelings of being lost and not knowing how to handle their relationship with someone. The repeated lines, "These days I don't know what to do / These days I don't know what to do with you," express the singer's confusion and indecisiveness when it comes to the person they are addressing. They are unsure about their role or position in the relationship. The song's title, "Rat Castle," metaphorically represents a place that is chaotic and disorienting. In this context, it symbolizes the state of the singer's mind and emotions. The song describes the struggle to comprehend and make sense of the conflicting emotions and actions within the relationship. Overall, "Rat Castle" is an introspective and emotional song that portrays the confusion and uncertainty one can experience when navigating complex relationships. The lyrics convey a sense of seeking guidance and understanding as the singer grapples with their own feelings and interactions with another person.