Sañjaya said: Thus I of Vāsudeva and Pārtha, both great souls, this dialogue heard, wonderful, hair-raising with joy.

Narrator’s voice. Vāsudevasya — of Kṛṣṇa (son of Vasudeva). Pārthasya — of Arjuna. Mahātmanaḥ — great souls, noble Beings.

Aśrauṣam — I heard (direct testimony). Adbhutam — wonderful, prodigious. Roma-harṣaṇam — causing hairs (roma) to stand with joy/emotion (harṣa).

The auditory experience transcends the intellectual.