So if we want to increase our attachment for Kṛṣṇa, then the śraddhā is the basic principle: faith. "Yes. Kṛṣṇa is the Supreme Personality of Godhead." Even if we don't accept Him . . . at least everyone accepts Kṛṣṇa, the greatest personality. So that much faith is the beginning of āsakti, attachment for Kṛṣṇa. That little faith. Svalpam apy asya dharmasya trāyate mahato bhayāt. Now you have to increase that faith. That increased faith means, as it is enunciated by Rūpa Gosvāmī, ādau śraddhā. If you have got little faith, to increase the faith, just yourself associate with the devotees. Ādau śraddhā tataḥ sādhu-saṅgaḥ (CC Madhya 23.14-15).
Because . . . just like if you want to do some business, if you . . . if you want to increase the volume of business, you have to associate with business . . . businessmen of the same line. Just like there are different mercantile association, share brokers' association, grain merchant association, oil ship merchant association. So to increase the volume of business, one has to associate with the similar persons. So if you want to increase your faith in Kṛṣṇa, then you have to associate with kṛṣṇa-bhaktas. Associate. Ādau śraddhā tataḥ sādhu-saṅgaḥ (CC Madhya 23.14-15).
This sādhu means kṛṣṇa-bhakta. Without becoming kṛṣṇa-bhakta, according to Bhagavad-gītā, nobody can become a sādhu. That is also explained in the Bhagavad-gītā. Sādhur eva sa mantavyaḥ (BG 9.30). Who? Bhajate mām ananya-bhāk. Api cet su-durācāro bhajate mām ananya-bhāk, sādhur eva sa mantavyaḥ. He's sādhu. Not that sādhu, simply like me, change the dress or having a long beard or . . . no. The sādhu means one who's purely devotee of the Lord. He's sādhu. Bhajate mām ananya-bhāk. Without any deviation. One who has taken Kṛṣṇa, the Supreme Lord, as the only worshipable, he's sādhu. Sādhavaḥ sādhu-bhūṣaṇāḥ. Titikṣavaḥ kāruṇikāḥ sādhavaḥ sādhu-bhūṣaṇāḥ. Ajāta-śatravaḥ śāntāḥ sādhavaḥ sādhu-bhūṣaṇāḥ (SB 3.25.21). There . . . these are the definition of sādhu.
Sādhu means titikṣava. One who has taken Kṛṣṇa as the Supreme Lord, Kṛṣṇa as the Supreme Person, he has to tolerate so many things—so many criticism, so many tribulations. Just like Prahlāda Mahārāja. Prahlāda Mahārāja had to undergo so much tribulation from the hands of his father because he became a sādhu, kṛṣṇa-bhakta. The only fault was that he was a kṛṣṇa-bhakta. Even the father, the atheistic father, became enemy. He wanted to kill him. You know Prahlāda-caritra. If there is opportunity, we shall speak. It is horrible. Five-years-old boy, because he was chanting Hare Kṛṣṇa, Nārāyaṇa, the father became enemy. Titikṣava. Therefore a sādhu has to become very tolerant.