“Be always engaged in Kṛṣṇa consciousness. That is the success of your life.” And how to discharge this Kṛṣṇa consciousness? He advises, śravaṇa kīrtana, smaraṇa vandana, pāda-sevana dāsya re. You can adopt out of the nine ways of devotional service any one. If you can adopt all of them, that’s very nice. If not, you can adopt eight of them. You can adopt seven of them, six of them, five of them, four of them. But even if you adopt only one of them, your life will be successful. What are those nine methods? Śravaṇaṁ kīrtanam. Hearing from authoritative sources. And chanting. Śravaṇaṁ kīrtanam. Smaraṇam. Memorizing. Vandanam, prayers. Śravaṇa kīrtanaṁ, smaraṇaṁ vandana, pāda-sevanam. Offering service to His lotus feet as eternal servant. Pūjana sakhī-jana. Or just try to love Kṛṣṇa as your friend. Ātma-nivedana. Or give up everything for Kṛṣṇa. That is the way of devotional service, and Govinda dāsa is aspiring after that Kṛṣṇa consciousness business.
(Prabhupada 0376 – Bhajahu Re Mana Purport)