@ Spelunker: You should get the dungeon item at the end of 4. Did you get past the room with the singpost that says "Patience" ?
@ Canaan: if I understood correctly where you are, the rest of the rooms to the right show you what you need to do next. The first one shows where you need to push the blocks. The second one shows a few triggers. The triggers do NOT have to be on blocks (notice the eyeball on the wall. What would you normally do?). It may be kinda tricky (it IS the ordeal of wisdom, after all!) so PM me if you still can't manage.
@ Patgarret: There's nothing to do on that screen, and I sadly can't know which doors you've opened. If you tell me which one isn't open, or sent me a picture, I'll be able to help you.
I REALLY need to learn how to use spoilers! Can anyone enlighten a poor newbie?