Lyric discussion by fullmetalfunk 

Well there are a couple interesting theories but I think it's about a Father who had a hard life and rasied his daughter sort of sheltered as to make sure she didn't go down the same road he did. The 20 years of clean I think is about virginity or maybe just pureness in general. She's been raised sheltered and even though the father is trying to keep her pure she wants to go out and experience life on her own. Just my two cents.

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