Brother Michael is the son of Donald and Jo-Anne Miller of Allison Park. His sisters are Jean Lowden of McKees Rocks and Nancy Miller of Allison Park. His brother is John Miller of Centerville, Ohio.
He is a 1979 graduate of Shaler Area High School in Glenshaw. He studied at Duquesne University in Pittsburgh and received a bachelor of arts degree in philosophy in 1985 from Don Bosco College in Newton, New Jersey. He taught elementary school at Saint Joseph Regional School in Newton before entering the monastery in 2001. He made his first vows on July 10, 2002. He earned a master of arts degree from Saint Vincent Seminary on May 11, 2007. He made solemn profession of vows on July 11, 2007. From 2005-2007 he served as an assistant in the summer retreat program. From 2007 until 2009 he taught second grade at Cardinal Wright Regional School in Pittsburgh. Since 2009 he has been teaching second grade at Saint Benedict School in Carrolltown.