Ackster understood that the being in front of him was the one responsible for everything. In the original story—No. The being had rewound time when Millmeria ended at the hands of the Voice. The being reset Millmeria to a time ten years before. When he did that, he also made a…—Ackster wasn't even sure what he was, but the being created him and stuffed him inside the previous Ackster Phileam's body.
Ackster had no idea what happened to the original inhabitant of his previous body. But that didn't matter now.
What mattered was that the being had done all that for a stupid play. It had made an actor and added them to the cast to change the ending of a story it liked but wanted to change. The cosmic being had altered reality on a worldwide scale to suit its fancy and give itself an ending it liked.