Is an Undead's soul not twisted and corupted with dark magics that would make this impossible? (The main force behind the Light is goodwill and purity of mind and soul is it not?)
Is an Undead's body not bound by dark magics (You know, tieing a twisted and corupted soul back into its lifeless corpse... Thats some prety dark magic there... ) that would make them an unsuitable host for the power of Light and thus exactly why their so susceptible to its powers and effects ( <--in a damaging aspect) in the first place?
Aren't these powers given/handed down by/from the Naaru (More to the point, why would a Naaru give power to an Undead (A being made of darkness) when these powers are meant to destroy and prevent darkness)?
I know I know.. 1 question.. :P.. I'm sorry.. But I had to get all down and gritty about it simply because its all relative and tied together... A simple explination would not suffice if it only reflected one aspect of the puzzle.. So I may as well ask about the whole puzzle and get a real answer.. ;)
P.S. Heres a joke question I juss thought as a bonus.. lol..
If a Naaru hovered into the Undercity, would the populace turn to dust? lol.. (You don't need to answer that one.. lol.. )..