i know a girl who's like the sea / i watch her changing every day for me / one day she's still, the next she swells / you can hear the universe in her sea shells
nothing in life is constant. everything is changing.
no line on the horizon
this line isn't about limitless possibilities at all. you can't see the horizon when it's foggy or when you're in the midst of a storm. that's when there's no line on the horizon.
she said infinity is a great place to start / time is irrelevant, it's not linear
when bono can't find the truth, all he can turn to for any sort of anchor is 'eternity', 'heaven', 'god'. and if god is eternal, god is not linear. not something that is easily grasped.
i'm not going to bother going line by line through the whole song, but you get the gist of where i think the song is going. i could be wrong, but bono really does write about god most of the time.