Barong dance is a battle between good and evil spirit

Barong dance is a battle between good and evil spirit.The Barong is the magical protector of Balinese villages. As & lord of the forest with fantastic fanged mask and long mane, he is the opponent of Rangda the witch, who rules over the spirits of darkness, in the never ending fight between good and evil.
Kintamani Volcano View and Ubud Village Tour

During the Galungan Kuningan festivals, the Barong (there are many types, including barong ket, barong macan, and barong bangkal) wanders from door to door (nglawang) cleansing the territory of evil influences.

Bali Kintamani volcano Ubud and Barong dance full-day tour

Barong can take various forms but in this dance he takes the form of the dance Barong Keket, the most holy of the Barongs. The Barong Keket is a strange creature, half shaggy dog, half lion and is played by two men in much the same way as a circus clown-horse.

• The dance opens with two playful monkeys teasing Barong in a peaceful environment.
• The next scene is popularly known as "Keris Dance". The Rangda character appears and wreaks havoc. She casts black magic upon male dancers, who represent Airlangga's soldiers, and orders them to commit suicide. In a trance, these men stab themselves on their chest with their own kris. Meanwhile, Barong and the priest cast protective magic on these men, which makes them invulnerable to sharp objects.
• The dance ends with the final battle between Barong and Rangda, concluding with the victory of Barong over Rangda. Rangda runs away, the evil is defeated, and the celestial order is restored.