lufia2, ancient tower

i am at ancient tower. i am stuck on the puzzle or whatever it is.
there is 4 purple pillars, around a white button. what do u do to open the door?

I’m pretty sure I don’t remember correctly but is there a pumpkin guy in that room if so move a pillar or two aside and lead him onto the switch. Stun him with the Hook or an arrow and push the pillars around him and the door should open.

http://www.rpgclassics.com/shrines/snes/lufia2/puzzles/atower3.shtml

Basically what YWE said, except in picture form and Sinistral approved.