User blog comment:Xilinoc/Ch. 585 - The Headless Star 4/@comment-1268838-20140619230557/@comment-24282510-20140620012712

I feel like Yhwach is waiting for Ichigo to get close to actual go there. Maybe to use his cloths to open the barriers that have closed. Leaving Ichigo there. It would a poor defence for all 72 barriers to wait and close at once. The ones closer to the palace should be closed. Considering that it took him at least half a day to make the trip i doubt all the barriers openned at once.