Tanuki wrote:Maybe there are really powerful spells powered by the emotions that harry has regarding his friends. They don't necessarily have to be love spells, but they have a benign source, unlike the unforgivable curses. Think of Expacto Patronum.
that is a good point tanuki. often spells need emotion behind them to work. maybe it is to harry's benefit that he can't block out his emotion. snape obviosuly seems to think that his inability to practice occlumency will be his downfall, but maybe he needs to be able to freely feel in order to finally do in lv. perhaps going to godric's hollow and seeing his parents' graves will have the effect he needs to find the rage to kill him.