Forbidden in the Bible, and an abomination before God.
He was known for his ability to integrate school lessons with diversions such as juggling and tricks of the "oh-there's-a-quarter-behind-your-ear" variety.
He would be horrified to learn that this Mass-mocking priest was trying to link his name to evil acts like necromancy, soothsaying, conjuring, etc.
Of course, individuals like Mantelli have a long history of making up stories about papal audiences and encounters.
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I don't know about "peace" part but they got that "wonder" nailed down right! Wonder, as in "What the...?"