ok i'vetried hard to figure this out on my own but i honestly don't know wtf to do. i'm up to the HourGlass temple for the 3rd time, and i've gotten past the red door where you draw the triforce but after that i've no clue hwat to do. i get to a room with a thing you can put like a circle block in only i can't find it anywhere. there's also this sign on the floor when you step over the menu thingies on the bottom left and right screen come up so i assume i need to use something there but nothing i use on it works.