This verse describes the profound impact of the Pāṇḍava conch sounds. The noise is so intense that it ‘shattered the hearts’ of the sons of Dhṛtarāṣṭra. It vibrated across both the sky and the earth, filling the entire atmosphere with a terrifying resonance. Crucially, no such reaction was described when the Kauravas blew their conchs. This indicates the spiritual difference between the two sides. The Kauravas, though confident in their material numbers, produced a sound that fell flat because it lacked spiritual depth. The Pāṇḍavas, connected to Kṛṣṇa, produced a sound that struck terror into the conscience of the usurpers. Guilt makes the heart weak; the Kauravas knew they were on the side of adharma, making them psychologically vulnerable to this display of divine power. It foreshadows their eventual defeat.