tahiṅ madhye - in that chapter; prema-dāna - distribution of love of Godhead; viśeṣa - specific; kāraṇa - reason; yuga-dharma - the religion of the millennium; kṛṣṇa-nāma - the holy name of Lord Kṛṣṇa; prema - love of Godhead; pracāraṇa - propagating.

The third chapter specifically describes the distribution of love of Godhead. It also describes the religion of the age, which is simply to distribute the holy name of Lord Kṛṣṇa and propagate the process of loving Him.