I assume you son is normal in real life? You are feeling that you are unable to move in real life. That part of you is content being that way. The cushion represents insulation. You are insulating your self from others, when in that condition. You were OK being in that condition in the past. It was a way of "Chickening" out for you in the past. Now you want change from being in that state. Now you are frightened and upset about remaining in that condition.