Save the eye that does not see: as I understood it that was explicitly confirmed as preventing Cartagia from mutilating G'Kar.

Do not kill the one who is already dead: I think this refers to sparing Morden. Not just a morally good thing, but if Morden hadn't been killed he'd probably have been so outraged that the Shadows abandoned him that he'd have spilled the beans about the Drakh, which might have prevented the Centauri coming under their influence.

Submit to his fear knowing that it will destroy him: the one he finally passed, accepting the Keeper to protect his people.