FFCC: Ring of Fates

I am in the Crystal Temple, in the 2nd poison room, near the end of the game. I have defeated all the monsters and caused th key to appear. Can anyone tell me how I get through the big, giant fence? I have checked several on-line guides, but all seem to gloss over this part.

I'm unclear on this, however I do remember having to go around to another room which the gate linked to, and pulled the gate through that way.

Oh ok, found it in the lever room (the levers that change from red to blue).