Our heart is filled up with all dirty things, adharma. And it is very difficult to purify the heart, but it is possible, tad api. Even the hard-hearted, stone-hearted, rajo-guṇa, tamo-guṇa, can be melted, can be reformed. How? Īśāṅghri-sevayā. Īśa. Īśa means the Supreme Lord, Kṛṣṇa. Āṅghri means His lotus feet. Sevayā. This is possible. In the Bhagavad-gītā also, Kṛṣṇa says the same thing. Māṁ hi pārtha vyapāśritya ye 'pi syuḥ pāpa-yonayaḥ (BG 9.32). Pāpa-yoni. Puṇya-yoni means according to the infection of the heart with different qualities of these material modes of nature. That is called pāpa-yoni. One whose heart is too much engrossed with tamo-guṇa, rajo-guṇa, they are lower grade, pāpa-yoni. And gradually one who is free from the tamo-guṇa, rajo-guṇa... Even sattva-guṇa. Of course, sattva-guṇa is taken—the platform of goodness. That is the only hope in this material world, that one has to come by endeavor to the sattva-guṇa platform. Then the heart disease, kāma... hṛd-roga-kāma(?). It is a heart disease. Kāma means lusty desires simply to enjoy senses. This is called kāma. Hṛd-roga-kāma āpṛṇoti.
So the Kṛṣṇa consciousness movement means to cure the heart disease full with lusty desires. This is Kṛṣṇa consciousness. And the perfection comes when anyābhilāṣitā-śūnyaṁ (Brs. 1.1.11)—no more any material desire. That is possible.