- kṛte yad dhyāyato viṣṇuṁ
- tretāyāṁ yajato makhaiḥ
- dvāpare paricaryāyāṁ
- kalau tad dhari-kīrtanāt
- (SB 12.3.52)
Kalau, in this Kali-yuga, when people are very, very fallen . . . Mandāḥ sumanda-matayo manda-bhāgyā hy upadrutāḥ (SB 1.1.10). They are very unfortunate also, and manda-bhāgyā, and although unfortunate, they are disturbed by so many external factors. So it is very difficult to execute yoga system or yajña system, sacrifice. It is very costly affair. Or even arcana, temple worship, it is also very difficult, because people are not very much interested even, worshiping the Deity in the temple. In India there are thousands and thousands of temples, temple or mosque or church, at the same time, for offering prayers, obeisances to the Lord. People are losing interest in that arcana-mārga. There are many temples I have seen, there is no caretaker. People are losing interest. Many temples. They are open; a dog is living within the temple and passing stool. I have seen it.
So people are gradually losing interest in temple worship even, what to speak of yoga or offering sacrifices. Everything is now finished. Therefore kalau tad dhari-kīrtanāt. This is recommended in the śāstra. That system was introduced by Caitanya Mahāprabhu, because other system will not be successful in this age. May be successful in one or two cases, but not for the general mass of people. Therefore śāstra recommends . . . There are different incarnation of God, but one incarnation is there, it is mentioned in the Śrīmad-Bhāgavatam and other places also, in Upaniṣad and Mahābhārata. These are approved Vedic scriptures. So the Vedic knowledge is summarized in the Vedānta system, Brahma-sūtra, everything done by Vyāsadeva.