Bhāgavata-Māhātmya and the Complete Summary of the Śrīmad-Bhāgavatam
तस्य कर्माण्यपाराणि कीर्तितान्यसुरद्विष: । पूतनासुपय:पानं शकटोच्चाटनं शिशो: ॥ २८ ॥ तृणावर्तस्य निष्पेषस्तथैव बकवत्सयो: । अघासुरवधो धात्रा वत्सपालावगूहनम् ॥ २९ ॥
tasya karmāṇy apārāṇi kīrtitāny asura-dviṣaḥ pūtanāsu-payaḥ-pānaṁ śakaṭoccāṭanaṁ śiśoḥ
Also glorified are the innumerable pastimes of Śrī Kṛṣṇa, the enemy of the demons, including His childhood pastimes of sucking out Pūtanā’s life air along with her breast milk, breaking the cart, trampling down Tṛṇāvarta, killing Bakāsura, Vatsāsura and Aghāsura, and the pastimes He enacted when Lord Brahmā hid His calves and cowherd boyfriends in a cave.
This verse lists several Bāla-līlās—Pūtanā, the cart demon, Tṛṇāvarta, Baka, Vatsa, and Aghāsura—showing that even as a child Kṛṣṇa effortlessly protects His devotees and destroys demonic forces.
He is concluding and summarizing the Bhāgavatam’s essential topics, reminding Parīkṣit Mahārāja that hearing and glorifying Kṛṣṇa’s deeds is the heart of devotion and the essence of the Purāṇa.
By regularly hearing, chanting, and remembering Kṛṣṇa’s līlās—seeing them as protection for the sincere heart—one gains faith, courage against inner “demons” (lust, anger, fear), and steadiness in bhakti.