Followers of Sufism often engage in ritualized dhikr ceremonies, the details of which sometimes vary between Sufi orders or "tariqah". Each order, or lineage within an order, has one or more forms for group dhikr, the liturgy of which may include recitation, singing, music, dance, costumes, incense, "muraqaba" (meditation), ecstasy, and trance. Though the extent, usage and acceptability of many of these elements vary from order to order - with many condemning the usage of instruments (considered unlawful by most scholars) and intentional loss of control. In addition, costumes are quite uncommon and is almost exclusively unique to the Mevlavi order in Turkey - which is an official cultural "heritage" of the secular Turkish state. In Sufism, group dhikr does not necessarily entail all of these forms.