i totally think the first two were christian. the harmonies were AMAZING though. the last couple reminded me of Mulan i don't know about anybody else but i started humming the songs from that movie when i got out of class haha but no seriously, the last two were more instrumental. i think that the first ones you could tell were more religious and had words so you could get the message that they were trying to convery i think that it was more effective. the last two sounded a bet more fun and upbeat more spiritual than religious i guess. which tends to make sense in the context of the islam and buddhist religions because they do not believe in a specific icon its more nirvana-y and spiritual beliefs, which is kinda cool.