@slowwalker, I'm surprising to see 3 Holy Divines Shrines in Seon Am Sa Temple. No need to wonder Mountain God Shrine there coz God was a protector of the temple. Your guess better to understand coz I haven't more knowledge of Koreans Buddhism. I think there has different look than others. But it's only my point of view. You visited more times temples and have better knowledge. Thanks for sharing different kind of thing to me.