Srimad Bhagavatam 1.2.7

vasudeve bhagavati bhakti-yogah prayojitah janayaty asu vairagyam jñanam ca yad ahaitukan “By rendering devotional service unto the Personality of Godhead, Sri Krsna, one inmediately acquires causeless Knowledge and detachment from the World”.

By rendering devotional service unto the Personality of Godhead,

one inmediately acquires causeless Knowledge

and detachment from the World