Prabhupāda: Nārada Muni, he was a small boy. It was not possible for him to study Vedānta or philosophy. He was not even educated. But still, simply by eating the remnants of foodstuff left by the devotees, dvijaiḥ, he became so exalted. The explanation is given there that evaṁ pravṛttasya viśuddha-cetasaḥ. "Because I was engaged in this service, gradually my heart became cleansed." Viśuddha-cetasaḥ. Cetasaḥ means heart. So actually, Kṛṣṇa consciousness is there. As it is stated in the Caitanya-caritāmṛta, nitya-siddha kṛṣṇa-bhakti (CC Madhya 22.107). Because we are part and parcel of Kṛṣṇa. Just like father and son: however there may be misunderstanding, but if the father and son come together and their affectionate dealings is began, immediately original relationship is revived. It does not take much time. Similarly, we are already related with Kṛṣṇa, because Kṛṣṇa says, mamaivāṁśo jīva-bhūtaḥ (BG 15.7): "All living entities, they are My part and parcel." Ahaṁ bīja-pradaḥ pitā (BG 14.4): "I am the seed-giving father." So how this relation can be broken? That is not possible. That is already there, eternally.
Therefore it is said in the Caitanya-caritāmṛta, nitya-siddha kṛṣṇa-bhakti. Nitya-siddha means eternally perfect. It is not that we are artificially acquiring this kṛṣṇa-bhakti. No. It is not artificial; it is natural. This is actual fact. So we are simply . . . because our present . . . in the present material condition, our heart is covered with so much garbage of different types of body . . . just like all of a sudden something comes to your mind—it has no connection—just like a bubble comes out. Because so many dirty things are reserved on account of our material conditional life for millions and millions of years. Anādi karama-phale paḍi' bhavārṇava jale (Śrīla Bhaktivinoda Ṭhākura). Anādi, we cannot . . . anādi means . . . ādi means the creation. So before this creation. Bhūtvā bhūtvā pralīyate (BG 8.19). We are in this material contamination not that in this millennium—before that, just like millennium after millennium. Nārada Muni was speaking his life before this millennium. So anādi. Anādi means creation. But not only one creation; several creations we are forgotten, or we are in this material world. Kṛṣṇa bhūlīya jīva-bhoga vāñchā . . . (Prema-vivarta) We are searching after material comfort, material comfort, sense gratification, in so many ways. So anādi karama-phale paḍi' bhavārṇava-jale, taribāre nā dekhi upāya. In this way we are going.
So consciousness is there, but the dirty things contaminated life after life, that is accumulated. We have to cleanse this. That is called viśuddha-cetasaḥ. Viśuddha-cetasaḥ. Just like infection of disease can be also disinfected by injection, by vaccine, similarly, if you take this vaccine, or antiseptic . . . what is that called? Countering? Counteracting?
Devotee: Inoculation? Inoculation or . . .
Prabhupāda: Inoculation or . . . so many. There are different terms. So this is the process. We are eternally related with Kṛṣṇa, nitya-siddha kṛṣṇa-bhakti, and we're eternally very affectionate and obedient servant of Kṛṣṇa. That is our position. Somehow or other, it is covered. So that garbage that's covering has to be moved. Therefore Caitanya Mahāprabhu said, ceto-darpaṇa-mārjanam (CC Antya 20.12). This is the process of cleansing the mirror of the heart. Mirror, when it is covered by dust, you cannot see your face nicely. But as soon as it is nicely brushed and cleansed, you see exactly what you are. Similarly, this Kṛṣṇa consciousness movement means cleansing the heart of all the dirty things that is accumulated life after life. It is not an artificial thing we are learning to become devotee of Kṛṣṇa. We are already devotee of Kṛṣṇa, but we have forgotten, or the consciousness is covered. Now, by this process, devotional process, especially by kīrtana, by chanting, glorifying the holy name of the Lord, the cleansing process is accelerated. Very soon it takes place.