Gathering and votive practice usually centre on the ziyara: a small shrine, offerings, incense, circumambulation. The cemevi is not the centre of this tradition.
Amcalık names a bond of religious brotherhood / guidance.
Hırise (herise) is a wheat dish cooked together, especially at Ghadir — a shared table for the feast day.
Shaykh lineages and village memory are more living than a printed “order hierarchy”.
Khidr is invoked at many shrines. That is not a claim that every dome is “Khidr’s grave”; it is a belief in visitation and presence.