Inside of Swords Gate Mountain, there would surely be a hidden second and third dimension. The second dimension sealed the gods' spirits in it, and the third dimension is the altar where the spirits were siphoned to nurture the Saint Spirit.
Of these two dimensions, there should be nothing else left behind, nothing valuable worth plundering.
However, other than these two places, there should be a fourth dimension, and that was the place Zhong Yue was searching for.
The fourth dimension would be the place where the guardian of the tomb resided!
The Black Mountain secret realm was precisely where the East Barren Devil Soul Forbidden Land tomb guardian Monster God Ming King resided in. And if the Black Mountain had one, then the Swords Gate Mountain would also have one!