Arjuna meets the Lokapālas, is tested by Indra, and is led to Amarāvatī for astra-śikṣā
Indraloka-gamana
स मासान् विभजन् काले बहुथधा पर्वसंधिषु । तथैव भगवान् सोमो नक्षत्र: सह गच्छति
sa māsān vibhajan kāle bahudhā parva-sandhiṣu | tathaiva bhagavān somo nakṣatraiḥ saha gacchati ||
قال فَيْشَمْبايَنَة: «وهكذا، مع دوران الزمان، عند مفاصل الفصول، تُقسَّم الشهور بوجوهٍ شتّى. وعلى النحو نفسه يسيرُ الإلهُ سوما، القمرُ، مع النَّكشَترا (الكوكبات)، فيدورُ دورتَه حول ميرو، وبذلك يَسِمُ حدودَ الشهور وتقاسيمَها.»
वैशम्पायन उवाच
The verse highlights ṛta/dharma as cosmic regularity: time is not arbitrary but structured through observable celestial motions, especially the Moon’s progress with the nakṣatras, which underwrites the calendrical division of months and seasonal transitions.
Vaiśampāyana describes how months and seasonal junctures are determined, explaining that the Moon, moving in concert with the constellations (nakṣatras), serves as the celestial marker by which the divisions of time are recognized.