The nāgas would be the followers of Virūpākṣa (Pāli: Virūpakkha), one of several 4 Heavenly Kings who guards the western route. They work as guards upon Mount Sumeru, protecting the dēvas of Trāyastriṃśa from attacks with the asuras.In Balinese tradition, nāfuel are often depicted battling garuḍas. Intricately carved nāfuel are iden