The Feast of Saint Nicholas of Flüe is observed in Switzerland every September 25. This day honors Nicholas of Flüe, a Swiss hermit, mystic, and ascetic who was canonized in 1947 by Pope Pius XII and is recognized as the patron saint of Switzerland. Nicholas, also known as Brother Klaus, lived an ascetic life in the Ranft chine after leaving his family with his wife's consent. He became a spiritual guide known for his piety and wisdom, attracting followers from across Europe. The feast is particularly significant in the canton of Obwalden, where his grave is located, and it is a public holiday there. On this day, pilgrims visit his grave and participate in church services to pay their respects.