1. The Sacred Earth Invocations of the Nyishi Nation
Every year in late February (celebrated across four continuous days and nights from February 23 to February 26, reaching its grand public climax on February 26), the pine-clad river valleys and verdant mountain ranges of central Arunachal Pradesh resonate with the primal chants and joyful laughter of the **Nyishi people**: Nyokum Yullo.
The Nyishi are the largest indigenous community in Arunachal Pradesh, inhabiting the districts of Papum Pare, Lower Subansiri, Kurung Kumey, Kra Daadi, and East Kameng. In their native language, *Nyok* translates to "land", "soil", or "earth", while *Kum* signifies "collectiveness", "union", or "gathering". Combined with *Yullo* (a grand sacred communal sacrifice), Nyokum Yullo represents the ultimate pre-sowing agrarian ritual. Celebrated before the seeds of hill paddy and millet are cast into the jhum slopes, the festival is a collective invocation to **Goddess Nyokum**—the mother goddess of prosperity, fertility, and earth abundance. The community gathers to pray for bountiful harvests, healthy livestock, protection from catastrophic floods and insect swarms, and the harmonious well-being of all living beings under the benevolent gaze of the sun and moon (*Donyi-Polo*).
The spiritual centerpiece of every celebration is the sacred **Yuging**—a monumental sacrificial altar erected in the center of the festival ground (*Nyokum Lapang*). Crafted exclusively from freshly cut jungle bamboo stalks by village elders, the Yuging is adorned with thousands of finely carved, curling shaved bamboo tassels (*Sambhyo*), sacred wild leaves, and hand-braided cane ropes. Around this altar, the revered high priest (**Nyibu**) conducts esoteric sacrificial chants, while hundreds of villagers form unbroken chains to dance the ecstatic **Buya dance**, their synchronized steps beating time upon the earth.