Okay from left to right you have the torch then the ability pillar then another torch then a stalagtite.. or a stalemate, fuck I don't really know the difference. Then you have that dang goblin looking like the scenery and then there's lava. You talk to the goblin and then he moves letting you pass.Okay, what am I supposed to do here?
Edit
Looking at the map again you might be able to walk around the lava and avoid the goblin entirely.