विप्रापत्यमचक्षाणस्तत ऐन्द्रीमगात् पुरीम् । आग्नेयीं नैऋर्तीं सौम्यां वायव्यां वारुणीमथ । रसातलं नाकपृष्ठं धिष्ण्यान्यन्यान्युदायुध: ॥ ४३ ॥ ततोऽलब्धद्विजसुतो ह्यनिस्तीर्णप्रतिश्रुत: । अग्निं विविक्षु: कृष्णेन प्रत्युक्त: प्रतिषेधता ॥ ४४ ॥
viprāpatyam acakṣāṇas tata aindrīm agāt purīm āgneyīṁ nairṛtīṁ saumyāṁ vāyavyāṁ vāruṇīm atha rasātalaṁ nāka-pṛṣṭhaṁ dhiṣṇyāny anyāny udāyudhaḥ
Not seeing the brāhmaṇa’s child there, Arjuna went to the cities of Indra, Agni, Nirṛti, Soma, Vāyu and Varuṇa. With weapons at the ready he searched all the realms of the universe, from Rasātala to the very roof of heaven. Yet finding nowhere the son of the dvija, and feeling his promise unfulfilled, he resolved to enter the sacred fire—when Lord Śrī Kṛṣṇa stopped him and spoke.
Śrīla Viśvanātha Cakravartī comments that Arjuna trusted Lord Śiva implicitly as his guru, and so he did not bother to search out Lord Śiva’s celestial abode.
Because he could not locate the brāhmaṇa’s missing son on earth, Arjuna searched successively through major deva-realms and even nether regions, exhausting extraordinary means to fulfill his promise.
The verse highlights the limitation of even heroic, empowered effort—without Kṛṣṇa’s sanction and guidance, one may not reach what lies beyond ordinary cosmic jurisdictions.
Do your duty with full effort, but remain humble and prayerful—recognizing that final outcomes rest with the Lord, and turning to Kṛṣṇa when strength and strategy are not enough.