vayasyair bālakais tatra
In tiffin hours, the hours when the teachers were absent from the classroom, the students called Prahlāda Mahārāja, wanting to play with him. As will be seen from the following verses, however, Prahlāda Mahārāja was not very much interested in playing. Instead, he wanted to utilize every moment for advancing in Kṛṣṇa consciousness. Therefore, as indicated in this verse by the word kṛta-kṣaṇaiḥ, at the opportune moment when it was possible to preach about Kṛṣṇa consciousness, Prahlāda Mahārāja used the time as follows.