Gokula’s Wonder, Kṛṣṇa’s Bhakta-vaśyatā, the Move to Vṛndāvana, and the Slaying of Vatsāsura and Bakāsura
ते तत्र ददृशुर्बाला महासत्त्वमवस्थितम् । तत्रसुर्वज्रनिर्भिन्नं गिरे: शृङ्गमिव च्युतम् ॥ ४७ ॥
te tatra dadṛśur bālā mahā-sattvam avasthitam tatrasur vajra-nirbhinnaṁ gireḥ śṛṅgam iva cyutam
Right by the reservoir, the boys beheld a gigantic living body lying there, like a mountain peak shattered and cast down by the thunderbolt (vajra). Seeing such vastness, they were struck with fear.
The verse uses the image of Indra’s vajra to convey that the fallen mountain fragment looked as if it had been split by a divine thunderbolt—highlighting the extraordinary, superhuman nature of the घटना (event) witnessed in Kṛṣṇa’s līlā.
Śukadeva Gosvāmī is narrating to King Parīkṣit, describing what the Vraja cowherd boys saw during Kṛṣṇa’s childhood pastimes.
It encourages श्रद्धा (faith) that divine protection is real: when one takes shelter of the Lord through bhakti, seemingly impossible dangers can be overcome by His unseen arrangement.