He had decided to return. As far as he was concerned, whether he had this form or not, even if he forgot everything about entering it, it wouldn't make a difference. One way or another, these people would pay in blood, and that was especially so for the Spirituals. But before that, there were several of the Human Domain that he would make suffer for their inaction.
The only difference to him was a matter of time. Using this form would take much less effort, but there was no one in this world a match for him given time. They would all suffer one way or another.
When he made this decision, Leonel shifted his attention. He moved from thoughts of violence, to thoughts of how to maximize his time in this form. Of course, his greatest reliance was his mind.