I think this is a song about someone cheering up a loved one- being a friend, boyfriend, or family member. He has pessimistic thoughts and probably deals with depression, and his friend/relative/lover wants to cheer him up and remind him of all the good in the world.
I think this is a song about someone cheering up a loved one- being a friend, boyfriend, or family member. He has pessimistic thoughts and probably deals with depression, and his friend/relative/lover wants to cheer him up and remind him of all the good in the world.