Gospel magic is intended to present the Christian good news through "visual parables";[2] the trick or illusion is used to present theological points in an entertaining way with the intention that people will remember the message.
His autobiography lists many dozens of magic tricks used for the purpose of offering religious instruction to children and youth.
[4] In 1910, C. H. Woolston published Seeing Truth: Object Lessons with Magical and Mechanical Effects which aimed to help adults working with children in church.
[5] These books are based on the Tarbell Course, a standard for stage magicians pre-World War II.
It was originally intended to be expanded to cover all eight-volumes in the Tarbell Series, but Miller died before this project was completed.