The idea of trick or treating came from the 9th century practice of ‘souling’. On November 2, All Souls Day, Christian children would walk the streets in their village singing and saying prayers for the dead in return for ‘soul cakes’ (not like the space cakes in Amsterdam), these were made from breads and currants. When a loved one was deceased, people would offer prayers to get their souls to Heaven as quickly as possible. The more prayers that were given, the more soul cakes they received. Sound familiar; he who has the most cakes wins. Thus, trick or treating.