Lyric discussion by kellybrennan 

How are there no comments for this song? It's sooo beautiful. I believe this song is about his old girlfriend/friend Katy. I'm pretty sure that I read that she passed away from cancer a few years back. It's a beautiful song for her if so.

Really??, I read that this song was about incest. Where did you read that?.

this song is obviously not about incest

"sister" is just used to illustrate their bond, not in the literal sense

it's about a love that has passed away

Hey fans!! This song, actually most of the April album was written for his baby sister. She died young. Marks current songs often mention his baby sister or his guardian or fallen angel.

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