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.

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