The monastery of Dirichlet enters the group of the few rock monasteries that were built and inhabited during the XII-XIV centuries. They represent a complex of medieval churches, monasteries and monastic cells, hewn in the rocks on the southern and South-Eastern slopes of the Shumen plateau.

The monasteries are the unique monuments that tell about the culture, educational and religious life of the times of the Second Bulgarian Kingdom. It is assumed that their occurrence is associated with the origin and development of medieval Bulgaria Hesychasm (Greek means "calm", "privacy"). The essence of this ancient Christian tradition is to constantly strive to achieve spiritual perfection by penance, renunciation of worldly goods.

The first researcher monasteries Shumen plateau was Karel Shkorpil. He and his followers found that are discovered in this territory the facilities really were once inhabited by hermits and monks. They chose to build their cells, the slopes of the plateau, because they are composed of soft limestone – mining material that crumbles easily and which is easy to cut through the cavity for housing. For the same reason, to the present day, unfortunately, not preserved cave frescoes, originally hermits. Monasteries are high enough. Modern researchers believe that the monks used to rise to their houses rope ladders.

The monastery of Dirichlet is located in a picturesque place about three kilometers North of the village of Osmar perrones. The Eastern side of the valley surrounded by steep rocky slopes of the Shumen plateau. The locals call this place the Monastery valley.

The monastery is located at an altitude of ten meters above the ground, it cannot be accessed without special equipment. The title "Dirichlet" is associated with the carved pillar disposed at the entrance of the house. In Turkish "post" - "the Director". From him and was subsequently founded the monastery its name.

Dirichlet is one of the most famous and most frequently visited cave monasteries in the area. This is because compared to other similar complexes, it is not so difficult to reach.