The Nāgas are the followers of Virūpākṣa (Pāli: Virūpakkha), on the list of 4 Heavenly Kings who guards the western path. They work as guards on Mount Sumeru, defending the dēvas of Trāyastriṃśa from attacks because of the asuras. The nāga in Indonesia mostly derived and motivated by Indic custom, https://128.199.208.170/