krsna-bhakti haya abhidheya-pradhana
krsna-bhakti—devotional service to Lord Krsna; haya—is; abhidheya-pradhana—the chief function of the living entity; bhakti-mukha—of the face of devotional service; niriksaka—observers; karma-yoga-jnana—fruitive activities, mystic yoga and speculative knowledge.
"Devotional service to Krsna is the chief function of the living entity. There are different methods for the liberation of the conditioned soul-karma, jnana, yoga and bhakti-but all are dependent on bhakti.
Link to this page: https://prabhupadabooks.com/cc/madhya/22/17