On Nisan's angelic statuary and unfinished painting; the disastrous coup attempt; and The One Who is Torn Apart: https://www.youtube.com/watch?v=miOizLxOD4E
http://xenogearsxenosagastudyguide.blogspot.com/p/xenogears.html
http://newschoolnotes.blogspot.com/2019/05/bookwarm-games-xenogears.html
