"The ... unharmed" is the message you get when you click on the Plinth.
Anyway, the golden one at the bottom is spinning, I beleive the back is spinning in the opposite direction. You can see this at the cutscene at the end of a beseige.
something I didn't really bother to take a picture of (but can be seen a little in the third shot, the Pilith seems to be sitting on a giant rock. I don't know if you can tell on the picture, but the area you stand on right before the pilith is sort of a catwalk.
Below the walk, and around the rock, is some metal grated flooring. Almost looks like Movalpolos, in a certain light.
For anyone wondering, if you can get through the Hall of Binding gate, into the second area, you're fine. The Gate: Hallf of Binding cannot be opened, but the Door to the "Inner Sanctum" can be (you can see the area i'm talking about right as the cutscene after beseiged starts, as it's zooming to the Astral Candescence)
off to the right, there's a ??? on a door, if you click it, it says something about a dark narrow passage, that you can't see, then it spits you out one of the doors near the zone to whitegate