While I have arbitrarily declared that Satanael's prison is on the moon, I have something of a specific image of it, depending on who I'm writing with. The struggles that she has placed against her prison have created the craters, or "rabbit" on the moon that we see from afar. Legends surrounding the rabbit on the moon may have even designated her as the rabbit itself. Originally, her prison was an open air prison that the elder gods had simply placed a magickal barrier around, but when the open air prison she inhabits becomes too troublesome to maintain and she breaks against it with varying manners of success, she's placed in a prison of blades, almost reminiscent of the Rider Waite’s tarot card depiction of the Eight of Swords. She’s not blindfolded, though she is shackled and surrounded by razor blades to stay in place. The magickal barriers that originally contained her are now further concentrated on one spot and easier to maintain, and it’s harder for visitors to come see her - not that, mind, she ever had any in the first place aside from the designated warden from the moon and Michael who came to spit on her every now and then. For Final Fantasy XIV players, it’s not very original : think, Zodiark’s prison.