“So, is there an afterlife, and if so, what will it be like? I don't have a clue. But I am confident that the one who has buoyed us up in life will also buoy us up through death. We die into God. What more that means, I do not know. But that is all I need to know.” ― Marcus J. Borg,
Angels of the higher orders cannot be summoned by even the most powerful sorcerers. More often than not, the sorcerer will accidentally summon one of the Fallen. In this case, if ANY part of the ceremony fails, the results can be catastrophic.