Ministry of Rites
The "Zhouli" provides detailed information about the roles of "wu"-shamans. It lists, "Spirit Mediums as officials on the payroll of the Zhou Ministry of Rites ("Liguan" , or Ministry of Spring, "Chun guan" )." This text differentiates three offices: the Siwu 司巫 "Manager/Director of Shamans", Nanwu "Male Shamans", and "Nüwu" "Female Shamans".