what a fascinating post, i especially like you comment on Korean religious history, I think many countries around the world in fact stem from shamanic practices, as early humans developed many religions based on tribal ritual and marriage rites. I will say these practices have modern relevances that in someway retain autonomy from organized religions and the pressures of conformity in that sense. We still throw coins in fountains in the UK, to make wishes come true! and its wonderful to see people expressing this all over the world in their unique forms and folklore