So at that time, it is said, ceta etair anāviddham. Because everything is within the heart. We become greedy, we become lusty on account of distortion of the heart disease, kāma. Tadā hṛdi lobha-kāma apahinoti. That is a heart disease. This kāma and lobha is a heart disease. Actually, you don't require this, but it is a kind of disease. "More and more and more and more and more." Never satisfied. So we have to cure this disease. And this process, simple process, Caitanya Mahāprabhu has given: ceto-darpaṇa-mārjanam (CC Antya 20.12). To cure the heart disease of lusty desires and greediness is chanting Hare Kṛṣṇa mahā-mantra. Paraṁ vijayate śrī-kṛṣṇa-saṅkīrtanam. These are the śāstric injunction, and spoken by personalities like Lord Caitanya and other ācāryas.
So we have to follow. Mahājano yena gataḥ sa panthāḥ (CC Madhya 17.186). Don't follow rascals and fools. Then it will be useless waste of time. Follow the great ācāryas. Ācāryavān puruṣo veda. One who is ācāryavān, who has accepted ācārya, he knows. Others, all are fools, rascals. Ācāryavān. Ācāryopāsanam. In the Bhagavad-gītā it is said, amānitvam adambhitvam ahiṁsā kṣāntir ārjavam, ācāryopāsanam (BG 13.8). You have to first of all worship the ācārya. Tad-vijñānārthaṁ sa gurum evābhigacchet (MU 1.2.12). Guru and ācārya, the same thing. So these are the process. Mahājano yena gataḥ. You cannot manufacture your ways of thinking. What you are? You are most insignificant living entity. And without following the ācāryas, without following the mahājanas, without following the śāstra, how you can teach?
But people are doing that. Without being followed by the ācārya, without being followed by the śāstras, they become guru, they become svāmī, they become yogī. It is useless. You cannot get . . . here are the process. Process is given: tadā rajas-tamo-bhāvāḥ kāma . . . (SB 1.2.19). Tadā means when you are fixed up in devotional service, then you can get out of these infection. These are infection. In . . . it is so dangerous infection. Infection, anyone can understand nowadays, scientific days. If you infect some disease, you have to suffer. You cannot escape. You infect today somehow or other—not today, not tomorrow, but some day it will come out. It is called kūṭastha, phalonmukha, prārabdha, pāpa-bīja. Pāpa-bīja remains as seed, kūṭastha. Then it is fructifying, phalonmukha. Then you suffer, prārabdha. This is called prārabdha-karma, infection.