When Kṛṣṇa was unable to find the calves and boys, He could understand that this was a trick performed by Brahmā. Then the Supreme Personality of Godhead, the cause of all causes, in order to please Lord Brahmā, as well as His own associates and their mothers, expanded Himself to become the calves and boys, exactly as they were before. In this way, He discovered another pastime. A special feature of this pastime was that the mothers of the cowherd boys thus became more attached to their respective sons, and the cows became more attached to their calves. After nearly a year, Baladeva observed that all the cowherd boys and calves were expansions of Kṛṣṇa. Thus He inquired from Kṛṣṇa and was informed of what had happened.