I think the whole song kind of ties into the ending. He is speaking to this girl about how being with her feels like floating. And being with her is all that matters, Since he doesn't know if there is an afterlife he is kind of saying "carpe diem" lets seize the day.
I think the whole song kind of ties into the ending. He is speaking to this girl about how being with her feels like floating. And being with her is all that matters, Since he doesn't know if there is an afterlife he is kind of saying "carpe diem" lets seize the day.