In the Seventh Canto of Śrīmad-Bhāgavatam, Fourth Chapter, verse 37, the great sage Nārada informs Mahārāja Yudhiṣṭhira about Prahlāda Mahārāja, who was a devotee from the very beginning of his life. The proof of Prahlāda’s natural devotion is that even when he was a small child he did not play with his playmates, but was always eager to preach the glories of the Lord. Instead of joining in their sportive acrobatic feats, he remained an inactive child because he was always in trance, meditating on Kṛṣṇa. As such, there was no possibility of his being touched by the external world.