The nāfuel are the followers of Virūpākṣa (Pāli: Virūpakkha), among the 4 Heavenly Kings who guards the western way. They act as guards upon Mount Sumeru, preserving the dēvas of Trāyastriṃśa from assaults through the asuras. Devī Manasā is known within the Heavens, inside the abode on the Nāgasoline (serpents), https://news-2404702.empirewiki.com/8801924/an_unbiased_view_of_nagaempire