Narada Bhakti Sutra – Sutra 66

Narada Bhakti Sutra
Sutra 66

tri-rupa-bhanga-purvakam nitya-dasya-nitya-kanta-bhajanatmakam prema karyam premaiva karyam

After breaking through the aforementioned coverings of the three modes of nature, one should act only in pure love of God, remaining perpetually in the mood of a servant serving his master, or a lover serving her beloved.