Prayer circles have several ifferent interpretations across Christianity and other religions. The most common definition of a prayer circle is where participants simply join hands in a literal circle of prayer, often as part of a vigil. Although these informal prayer circles have been practiced for centuries, their recent resurgence in popularity is frequently attributed to their use in the Catholic Charismatic Renewal movement. Similarly, amongst North American and specifically Native American Catholics, prayer circles have formed around Kateri Tekakwitha, who was the first Native American to be beatified by the Roman Catholic Church. Tekakwitha Conference prayer circles, called Kateri Prayer Circles, have been formed on nearly all U.S. Indian Reservations. In Islam, Muslims who make the pilgrimage to Mecca will form concentric circles around the Kaaba in prayer, and these too are commonly referred to as prayer circles.