The previous verse stated that the sage Viśvāmitra narrated everything about Gaṅgā. This is the beginning of the history of Gaṅgā’s appearance [on earth]. Kṛtodvāhaḥ indicates that Lord Śiva was only attracted to his own wife, not to any other woman. Spṛhayā indicates that though he was fixed in great austerities, being struck by the arrow of Kāmadeva, he hankered for Umā.

NOTE: But this is not the case with the Supreme Personality of Godhead. Śrīmad-Bhāgavatam 1.11.36 notes—uddāma-bhāva-piśunāmala-valgu-hāsa-vrīḍāvaloka-nihato madano ’pi yāsām / sammuhya cāpam ajahāt pramadottamās tā yasyendriyaṁ vimathituṁ kuhakair na śekuḥ: “Although [Kṛṣṇa’s] queens’ beautiful smiles and furtive glances were all spotless and exciting, and although they could conquer Cupid himself by making him give up his bow in frustration, and although even the tolerant Śiva could fall victim to them, still, despite all their magical feats and attractions, they could not agitate the senses of [Lord Kṛṣṇa].”