The defeat of evil and of demonic powers is associated with Halloween. For this reason, Martin Luther posted his 95 challenges to the wicked practices of the Church to the bulletin board on the door of the Wittenberg chapel on Halloween. He picked his day with care, and ever since Halloween has also been Reformation Day. The power of Satan has been broken once and for all, and our children can mock him by dressing up like ghosts, goblins, and witches.