A battle took place on a nearby field, on Saturday before Pentecost 1567, from which the Szekelys emerged victorious. The monks saw this as a sign of the care of Virgin Mary, and since then, this event has been commemorated by a pilgrimage when the believers gather on Pentecost every year.

Beside its religious importance, the pilgrimage has also become a community event demonstrating spiritual unity of Hungarian people living in and outside the historical region of Transylvania.

The sanctuary itself, it is Baroque in style and was completed between 1802 and 1804, inside one finds the most precious statue of the Virgin Mary. It is found in the Pilgrimage Church in Csiksomlyo, supervised by the Franciscans.
The Statue was made between 1515 and 1520 and survived the devastating fire of 1661.

In the sanctuary, there are countless ex-votos thanking the Blessed Virgin Mary for the many miracles she performed.