God Told Me in a Vision I Need a Holiday
From wikipedia, on Corpus Christi Day, a holiday here in Germany: The appearance of Corpus Christi as a feast in the Christian calendar was primarily due to the petitions of the thirteenth-century Augustinian nun St. Juliana of Liège. From her youth she claimed that God had been instructing her to establish a feast day for the Eucharist
So, basically, you just need to hassle the church enough, and they'll give you a new holiday. That's my kind of religion!