To learn how Kṛṣṇa enjoys pleasure, we must study the first nine cantos of Śrīmad-Bhāgavatam, and then we should study the Tenth Canto, in which Kṛṣṇa's pleasure potency is displayed in His pastimes with Rādhārāṇī and the damsels of Vraja. Unfortunately, unintelligent people turn at once to the sports of Kṛṣṇa in the Daśama-skandha, the Tenth Canto. Kṛṣṇa's embracing Rādhārāṇī or His dancing with the cowherd girls in the rāsa dance are generally not understood by ordinary men, because they consider these pastimes in the light of mundane lust. They foolishly think that Kṛṣṇa is like themselves and that He embraces the gopīs just as an ordinary man embraces a young girl. Some people thus become interested in Kṛṣṇa because they think that His religion allows indulgence in sex. This is not kṛṣṇa-bhakti, love of Kṛṣṇa, but prākṛta-sahajiyā—materialistic lust.
To avoid such errors, we should understand what Rādhā-Kṛṣṇa actually is. Rādhā and Kṛṣṇa display Their pastimes through Kṛṣṇa's internal energy. The pleasure potency of Kṛṣṇa's internal energy is a most difficult subject matter, and unless one understands what Kṛṣṇa is, one cannot understand it. Kṛṣṇa does not take any pleasure in this material world, but He has a pleasure potency. Because we are part and parcel of Kṛṣṇa, the pleasure potency is within us also, but we are trying to exhibit that pleasure potency in matter. Kṛṣṇa, however, does not make such a vain attempt.