The Nāfuel will be the followers of Virūpākṣa (Pāli: Virūpakkha), on the list of Four Heavenly Kings who guards the western course. They act as guards on Mount Sumeru, defending the dēvas of Trāyastriṃśa from assaults with the asuras. In some cases, the kings by themselves participated in religious ceremonies, https://128.199.208.170/