Mahabharata — Ashvamedhika Parva, Shloka 173
Vāsudeva’s Upadeśa: The Inner Enemy and the Indra–Vṛtra Precedent (आत्मशत्रु-बोधः; इन्द्र-वृत्रोपाख्यानम्)
विवेश सहसा शक्रं जग्राह विषयं ततः । आकाशके भीतर अमित तेजस्वी वज्रसे पीड़ित हो वृत्रासुर सहसा इन्द्रमें समा गया और उनके विषयको ग्रहण करने लगा
viveśa sahasā śakraṃ jagrāha viṣayaṃ tataḥ |
风神伐由说道：“继而，他骤然入于释迦罗（因陀罗）之中，攫取其‘境域’——把持因陀罗自身的领域与权能。在苍穹之内，光辉无量的弗栗陀罗为金刚杵所苦，忽然融入因陀罗，并开始执取他的权域。”
वायुदेव उवाच
Educational Q&A
Power gained through conflict is not merely external; it involves the right use of authority (viṣaya) and inner restraint. Even after victory, one must guard against being overtaken by the very forces one fought—anger, pride, or the lingering claim of violence—so that rule remains aligned with dharma.
A force/person (implied by context) suddenly enters Indra (Śakra) and takes hold of his ‘viṣaya’—his sphere of power or jurisdiction—suggesting an intrusion into Indra’s authority and a dramatic shift in control or influence.