Halloween, also known as All Hallows’ Eve, is one of the oldest holidays observed throughout the world. It falls on the eve of All Hallows’ Day, or All Saints’ Day, November 1, which is a celebratory day to honor all of the saints, known and unknown, who have attained Heaven. November 2, All Souls’ Day, was established with the intention of praying for all of the souls of those who had died and were still awaiting their entrance into Heaven. Therefore, we spend All Souls’ Day praying for the souls of the faithfully departed who are in purgatory. In fact, we continue this prayer for those we've loved and lost throughout November.