The Nāfuel would be the followers of Virūpākṣa (Pāli: Virūpakkha), among the 4 Heavenly Kings who guards the western route. They work as guards upon Mount Sumeru, preserving the dēvas of Trāyastriṃśa from attacks because of the asuras. The dense forests, mountainous landscapes, and quick-flowing rivers on the empire’s territory https://128.199.208.170/