Devotional service is the constitutional activity of the soul. It means engaging all senses in the service of the Supreme with love and devotion. The Bhagavad-gita (6.47) teaches that the greatest yogi is one who thinks of the Lord always, and (9.34) declares that devotional service is the highest path. The Bhagavad-gita (12.6-7) explains that pure devotion is unmotivated and uninterrupted, and (18.65) states that bhakti surpasses all other paths including karma (action), jnana (knowledge), and yoga (meditation). The Nectar of Devotion (Chapters 1-4) elaborates that love of God is the highest achievement.

The Nectar of Devotion describes nine primary devotional practices: hearing about the Supreme, chanting His names, remembering Him, serving His lotus feet, worshiping Him, offering prayers, becoming His servant, becoming His friend, and surrendering everything to Him. These nine processes engage all senses in spiritual activity. Even one process performed purely is sufficient for liberation. Chanting the holy names is especially powerful for this age, as taught in the Nectar of Instruction.