The walls are covered in ancient writing that is never translated in-game. While they might be a mystery to players, they don't provide any clues to puzzles or secrets.
The only thing you can do with the walls is interact with them to trigger a brief animation. This animation might give you a clue about the ruins' history or the ancient civilization that built them, but it doesn't offer any tangible rewards.
The Solaceon Ruins are primarily a location for you to explore and discover the history of the region. The walls are a part of that experience, but they are not meant to be deciphered.