Trance spirit is part of the Balian Hirek ritual procession. Balian hirek is a ritual of the Dayak Ngaju people, who adhere to the Kaharingan belief system, intended to ask for ancestral blessings. A balian will be possessed by spirits summoned through mantra recitations and offerings. This paper describes the ritual procession of hospitalization of incurable patients, children who go abroad, and children who have just entered school. The research was conducted in Sai Hanyo village, Kapuas Hulu subdistrict, Kapuas District, Central Kalimantan. Data collection was  through in-depth interviews and observations, specially direct observation of the Balian Hirek ritual procession and interviews with Balian and Kaharingan priest. The spirits that possess the balian body are different and alternate according to the purpose of "healing" by balian.

Keywords: balian hirek, ngaju, ritual, kaharingan