ká¹›ti-sÄdhyÄ bhavet sÄdhya-
bhÄvÄ sÄ sÄdhanÄbhidhÄ
nitya-siddhasya bhÄvasya
prÄkaá¹yaá¹ há¹›di sÄdhyatÄ
ká¹›ti-sÄdhyÄ - which is to be executed by the senses; bhavet - should be; sÄdhya-bhÄvÄ - by which love of Godhead is acquired; sÄ - that; sÄdhana-abhidhÄ - called sÄdhana-bhakti, or devotional service in practice; nitya-siddhasya - which is eternally present; bhÄvasya - of love of Godhead; prÄkaá¹yam - the awakening; há¹›di - in the heart; sÄdhyatÄ - potentiality.
This verse is found in the Bhakti-rasÄmá¹›ta-sindhu (1.2.2). Because living entities are minute, atomic parts and parcels of the Lord, devotional service is already present within them in a dormant condition. Devotional service begins with Å›ravaṇaá¹ kÄ«rtanam, hearing and chanting. When a man is sleeping, he can be awakened by sound vibration; therefore every conditioned soul should be given the chance to hear the Hare Kṛṣṇa mantra chanted by a pure Vaiṣṇava. One who hears the Hare Kṛṣṇa mantra thus vibrated is awakened to spiritual consciousness, or Kṛṣṇa consciousness. In this way one’s mind gradually becomes purified, as stated by ÅšrÄ« Caitanya MahÄprabhu (ceto-darpaṇa-mÄrjanam). When the mind is purified, the senses are also purified. Instead of using the senses for sense gratification, the awakened devotee employs the senses in the transcendental loving service of the Lord. This is the process by which dormant love for Kṛṣṇa is awakened.