Well upon entering this temple i was able to navigate my way through it rather easily within 2 hours, but now as I have to BOSS key and I am trying to get to the boss, I cant reach to the other side where you enter the boss's Dungeon. I dont know how to get that fan started so i can grapply my way there. I notice in the huge room before that you have to grapply on to the switch to get the fan going. I can't seem to reach it ... is this correct? what am i doing wrong?