GACKT Official Weibo update. Translation below:

下弦の月 〜聖夜の調べ〜(2002)
13.missing
I like this song a lot. It’s about the sudden death of the protagonist, but because he’s worried about the people he loves, his soul remains at the side of his girlfriend. Until the day his girlfriend finds a new love, then he’ll return to the skies. To be able to love someone like that is also a very blessed thing.

Source: GACKT WEIBO

Translation: GACKT ITALIA Team

Translation © GACKT ITALIA