"A Sail" by Lisa Hannigan is a song that captures a sense of longing, reflection, and the complex dynamics of a relationship. The lyrics depict a narrative of someone reminiscing about a past love and the emotions that accompanied it. The song begins by acknowledging that the speaker has moved on from a certain time period, represented by December. The memories and experiences during that time no longer hold significance, regardless of whether the other person remembers them. The references to mold, paper, bad wine, and whiskey indicate a sense of decay and detachment from the past. The line "I will roll my heart up in my sleeve" suggests vulnerability and openness, as if the speaker is willing to expose their emotions despite the pains of the past. The following verse delves into the dynamics of the relationship. The speaker mentions that they know they wrote their line, implying that they were the one who frequently spoke up or took charge. Meanwhile, the other person is depicted as quiet and unnoticeable. Despite the differences in their personalities, they were surrounded by their own world, their own realities. The repetition of the line "I will roll my heart up" signifies the determination of the speaker to protect themselves emotionally. It's a metaphorical representation of hiding their vulnerability and not exposing their true feelings. By rolling their heart up, they are guarding themselves from potential hurt. Overall, "A Sail" explores the complexities of love, the way people change, and the lingering emotions attached to a past relationship. The lyrics evoke a bittersweet sense of moving on while still being haunted by memories, and the need to protect oneself while navigating the unpredictable seas of love.