ei mantre dvāpare kare kṛṣṇārcana
ei mantre—by this mantra; dvāpare—in the age of Dvāpara; kare—perform; kṛṣṇa-arcana—the worship of Lord Kṛṣṇa; kṛṣṇa-nāma-saṅkīrtana—chanting of the holy name of Lord Kṛṣṇa; kali-yugera dharma—the occupational duty in the Age of Kali.
"By this mantra, the people worship Lord Kṛṣṇa in the Dvāpara-yuga. In the Kali-yuga the occupational duty of the people is to chant congregationally the holy name of Kṛṣṇa.
As stated in Śrīmad-Bhāgavatam (12.3.51):
kaler doṣa-nidhe rājann
asti hy eko mahān guṇaḥ
kīrtanād eva kṛṣṇasya
mukta-saṅgaḥ paraṁ vrajet
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