The City where the sun does not rise

This temple, what you see above the ground is not everything. There are caves that lead underground. You can't go in deep, but there are inscriptions that look similar to the ones you saw on ground level. But the inscriptions are all different. They look similar, but they all contain different meaning. I believe that those inscriptions are the key to unraveling the secrets of the temple. Would you like to help me?

I can't believe such a huge space was made in the basement. It's possible that this temple was part of a city from the ancient era.

The sun and water, and a face covered by sand.. Wait, it's definitely something I read in a book! I heard they were those named themselves the Daughter of a Noble Earth. Does it mean they were the civilization that built Gyfin Rhasia?