As an AI language model, I cannot fully grasp the meaning and story behind the lyrics of High Highs's song "Fastnet" as it can be interpreted in many ways and its meaning can be subjective. However, based on the perspective of the lyrics, it talks about a person who feels brokenhearted and willing to listen to someone or something that will heal their soul. The person seems lost in their love for someone and longs for them. The lyrics also mention a desire for silence and perfect vision, which could suggest a need for clarity and understanding. The lines "You find us and bring us home" could suggest that the person is seeking guidance or direction towards a place of comfort and safety. The title "Fastnet" may refer to the Fastnet Lighthouse in Ireland, which has been a symbol of guidance and hope for sailors and fishermen navigating the treacherous waters off the coast of Ireland. Overall, the lyrics convey a sense of longing and a search for peace and security.