The church was decorated with elegant stuccos (1752-1754) and frescos under the direction of Johann Baptist Zimmermann. The heart of the church is the Grace Altar by Johann Joseph Mayr with the miraculous image of Our Lady (1755): it is the sole altar with water gushing from a spring in the world. The mensa (flat surface of the altar) with the spring was designed in 1953 by the local sculptor Ernst Steinacker.
This church is one of the most visited places of pilgrimage in Bavaria. Therefore, Pope John Paul II granted it the status of “basilica minor” in 1998.
