Hello @slowwalker, Ha ha glad to listen your first travel to Keumsan-sa temple. We have found only little bit locations in our country like as you. Korea have most impressive another locations you haven't find yet. Geumgang gate has protective style.

Here, Geumgang means the Diamond.
In Korean Buddhism, Geumgang seemed having various meaning.

That's nice to see various meaning of Geumgang. Both of Geumgang statues, showing how to protect Buddha teaching. Both of them got massive try to preserve behind of Buddha lessons in these temple. Nice you found historical and Buddhism culture indeed temple. See ya.... Triple gem bless you.