The song is "Tidal" by the german progressive rock/metal band Sieges Even.
Daphnis and Chloe you ask?. Well, they were two kids from the novel so old, it's bound to be true (2nd century AD, by Greek novelist and romancer Longus). You see, people didn't know how to lie in those good-old-times. They didn't have the need. Nowadays, lying is a sport. It's a crucial part of prestige. Well, fuck that, I'm too senile to remember the truth, so how and why the fuck would I want to remember imaginary stories. Fuck lies. Anyway, Daphnis and Chloe fell in love and, this is good, they "didn't understand what is happening to them". Heehee. Well, fuck, things do not change, right? No one understands love anyway today. No progress being made in that sector in the last couple of millennia. OK, but it gets better - some old geezer (they were called "wise" in those respect-the-geriatrics times) tells them that the only cure (for being in love) is kissing. That's why I like old myths and stories - the solution is always simple and awesome. Unfortunately, it seems today nothing is solved anymore by kissing. Lame. Those Greeks knew how to party.