Hi! Thank you for your questions. The game is not entirely clear, but the main character is actually an alien who was worshipped by the people living in this city. The flying astrolabe is a part of the ship that he wants to use to take off and escape. The statues see that their deity has come not to save them, but to save himself, and they attack. Eventually, the main character ends up in purgatory, trapped in a kind of time loop where he is constantly killed by the statues. (at the beginning of the game, there was a ship fragment with a human-shaped imprint, where the main character had been sealed for thousands of years and had just managed to escape)