Mission: After convincing the locals you are worthy to know about the ax, and bringing lapis lazuli pieces to the local with the keystone, you can now enter the Temple of Heaven and retrieve Pangu's Ax.
The entrance to the lower levels is in the back right corner of the temple's grounds. Descend down the stairs.
Clear away the rubble.
Go down the stairs.
Put the keystone in the slot.
You enter this room. Collect the treasure from the chest. Continue through the hall.
Collect the treasure.
Go down the stairs.
Explore the dive well.
You can explore the other two dive wells, but nothing of interest is in them.
There is a water trap on the floor wherever there is a different floor tile color. Attempt to cross, disarm, or walk around them.
Collect the treasures in this room.

Continue through this room and climb the stairs.
Go down the stairs.
Try to avoid the traps.
Go up the stairs.
And down the stairs.
Disarm the trap to examine the hole in the wall.
Collect the treasure. Go up the stairs.
Retrieve Pangu's Ax off the wall. You can now report in, or smash the boulders that are in this tomb to access more treasure. You will now have Pangu's Ax to use in the other countries to smash boulders.
