divine power v/s SP

have a question....it says in the char info that a priest uses no sp....with divine skills that is...

um im a priest and when i use my "divine" skills i contantly use sp...soooo i know it says we use a "religious" power but im just trying to think why the hell it says we dont use sp for our buffs and stuff when in game we do....any takers on the answer....cuz i see it as misleading...

seeing as im in a dungeons and after a couple buffs and some divine attack im to like no sp...