I first heard this on a YouTube video for Final Fastasy The Spirits Within, except...it was never in that movie or soundtrack.  Run I heard it on a FF VII video, except was not in that either.  Tracked it down to Tears For Fears, years ago, remake by Jules and used n Donny Darko movie.  My wofe says it's dark,Mi just think it is a solid A, moving, touching, mindful, haunting.