This topic have been up and answered several times over in the forum, so please utilize the search function a bit before posting a question the next time, as your questions might have been answered already
Anyway, the goal of the puzzle is as the puzzle says if you decipher it is to get all the statues to shoot "blue" lightning at the door.
This is done by pulling leavers which are located on the "floating platforms", and positioning them so they hit the door when you pull the final leaver.