Locke removes white stone from the scale + ankh, lute, compass

Once Locke and Sawyer enter the cave, we see a scale with a white stone and black stone in balance. Locke removes the white stone and throws it into the ocean, telling Sawyer that it's an inside joke (presumably between he and Jacob).

On the table in the cave there is also a compass, an ankh and a lute (the stringed instrument you can see below). I wonder if Jacob would hang out here and play a few tunes?

When Sawyer asks if they are there to see the rocks on a scale, Locke lights a torch and leads him further into the cave. The interior cave will be a big post, so it will be separate.