[1] It consists of a zawiya, mosque, and the mausoleum of Mohammed al-Hadi ben Issa the founder of the Isawiyya order of Sufism.

[1] The mausoleum of Mohamed ben Issa, a prominent Ash'ari scholar and Sufi mystic, was established in the 16th century.

[2] Later in 1776, the Alaouite ruler, Mohammed Ben Abdallah, built a completely new structure around the saint's tomb.

[4] Instruments like the ta'raj, the brass, the flutes, the drums, the trumpet, are played, before the participants enter a long session of dhikr and meditation.

[5] The religious rituals in the festival are intertwined with musical and joyful celebrations that are sometimes violent, including rolling around and drinking blood of animal sacrifices.