Thanks for the advice on the braziers. Had been to the temple before and figured there was a door somewhere, didn't even notice the braziers.
So I'm in the room beneath temple and have figured out I need to push buttons to move the compass on the floor ... cept the buttons don't seem to move it.
I found 4 buttons, am I missing some? Is there a specific order?
Found the answer in another thread thankfully!
1 - at the top of the stairs exactly beneath the middle coal basket on the balcony
2 - on the north wall of the "middle room"
3 - on the left wall of the "western niché"
4 - on the right wall of the "southern niché"
