This sentence is the lyrics compiled by Li Yinhe according to Wang Xiaobo's quotations, "You are like a white miracle in the green grass; You are like Aphrodite, rising from the waves. If you like, I will love you forever; If you don't want to, I will miss you forever. Love, love, brilliant as a cloud. Loving you is like loving life! " This song is called "Love You as Life", but no one sings it. You can find the original text and lyrics in Li Yinhe's blog.
Most vampire fans like Damon's love for Elena, but they don't really recognize it. At the end of season 2 episode 8, Damon confessed to Elena. Everyone uses this classic sentence to describe Damon's love for Elena, which spreads more and more widely, but the original text is not from The Vampire Diaries.