This is an AMV from CLAMP which is an adaptation of the manga wish.
I felt like somewhat this AMV contained what could have been the opening and ending for an real anime adaptation because it had somewhat two songs within.
There is really no real reason for watching this one unless you want another completed entry or might wanna be interested in the manga itself or just like to see beautiful old animestyle (the last reason being what I like about this one)
The video itself especially first half is understandable even without the context, but the second half, the ending song, seemed more a classic weird
ending, I was therefore more confused (especially about the chickens o.o)
So yeah I only recommend this to one who would love to see beautiful oldie anime art with some okay good music too it ^^