I love this song, the music itself is so happy but the lyrics are incredibly sad, especially when you remember what happened in the show. Without the context of the show, I like to think of this song as being about acceptance- he's realized he'll never see his love again, but he's also realized that just because they will never meet again doesn't mean they will not stop loving each other. The singer has reached acceptance, the final stage of grief, and is free to finally love without pain- hence making it "the best day".
I love this song, the music itself is so happy but the lyrics are incredibly sad, especially when you remember what happened in the show. Without the context of the show, I like to think of this song as being about acceptance- he's realized he'll never see his love again, but he's also realized that just because they will never meet again doesn't mean they will not stop loving each other. The singer has reached acceptance, the final stage of grief, and is free to finally love without pain- hence making it "the best day".