This is the third of the three important slokas discussed by Srila Visvanatha Cakravarti Thakura in his Rag-vartma-candrika: sravanotkirtanadini vaidhi-bhakty uditani tu yany angani ca tanyatra vijneyani manisibhih
hare kṛṣṇa hare kṛṣṇa kṛṣṇa kṛṣṇa hare hare hare rāma hare rāma rāma rāma hare hare