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There is no escaping one’s corpse when one is a ghost. No rest for the weary soul until the body is laid to rest. Tethered to mine like kelp to the sea floor, I sway above a mound of rubble.

This purgatory is filled with haze. A nearby yellow-hat waves into the gray wall of fog, finger pointing at a pile of concrete and twisted beams. The shadow of another man forms in the fog wall, he emerges. A white-hat. The two men crawl over the concrete and shine flashlights into dark spaces.

The ground rumbles. The shadow of a beast forms in the fog wall, a great steel claw - yellow like the man’s hat - emerges. The white-hat points at a ragged block of concrete. The claw pinches the block and turns away. Steel and stone vanish into fog wall, eddies swirl in their wake.

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For example "Steel and stone vanish into fog wall, eddies swirl in their wake " add the word the before fog and add what type of eddies. Large? shades of gray?

Over all I think it works but it does need some tweaking. I'm not not sure if you need to explain what happened in the first 13 lines but it should probably be soon.