Never trust the restless mind; maintain vigilance through strict discipline and unwavering devotion to Krishna.Listen — Srila Prabhupada Uvaca
Pradyumna: [Chants verse] ṛṣir uvāca, satyam uktaṁ kintv iha vā eke na manaso 'ddhā viśrambham anavasthānasya śaṭha-kirāta iva saṅgacchante. [SB 5.6.2] [02:57] Translation: "Śrīla Śukadeva Gosvāmī replied: My dear King, you have spoken correctly. However, after capturing animals, a cunning hunter does not put faith in them, for they might run away. Similarly, those who are advanced in spiritual life do not put faith in the mind.
Indeed, they always remain vigilant and watch the mind's action." Prabhupāda: ṛṣir uvāca: satyam uktaṁ kintv iha vā eke na manaso 'ddhā viśrambham anavasthānasya śaṭha-kirāta iva saṅgacchante. [SB 5.6.2] First of all, one must prove that he's trustworthy; then we can accept him as trustworthy. Our mind is not fixed up; very restless. Cañcalaṁ hi manaḥ kṛṣṇa pramāthi balavad dṛḍham [Bg 6.34].
This is right example. Just like Haridāsa Ṭhākura. He was competent enough, mukta-puruṣa, but still, he was chanting regularly 300,000 times Hare Kṛṣṇa mahā-mantra. Even Caitanya Mahāprabhu said that "Now you have become old man.
You can reduce the number." Saṅkhyā-pūrvaka-nāma-gāna-natibhiḥ kālāvasānī-kṛtau nidrāhāra-vihārakādi-vijitau cātyanta-dīnau ca yau vande rūpa-sanātanau raghu-yugau śrī-jīva-gopālakau. [Ṣaḍ-gosvāmy-aṣṭaka] Raghunātha dāsa Gosvāmī especially, he was very strict in the matter of following the regulative principles, Raghunātha dāsa Goswami. He was living in Rādhā-kuṇḍa. He was very rich man's son and practiced very rigidly vairāgya. Bhakti-yoga means vairāgya.
As far as possible to deny material necessities, that is vairāgya. It is called vairāgya-vidyā. Śrīla Sārvabhauma Bhaṭṭācārya has said, vairāgya-vidyā-nija-bhakti-yogam [Cc Madhya 6.254]. Vairāgya-vidyā. Bhakti-yoga means vairāgya.
Bhaktiḥ pareśānubhavo viraktir anyatra syāt [SB 11.2.42]. This is bhakti-yoga: no more any necessity for material things. Niṣkiñcinasya bhagavad-bhajanonmukhasya. There are so many.
Rūpa Gosvāmī, Sanātana Gosvāmī, they were liberated persons. Even Caitanya Mahāprabhu, He's God Himself, but still, to teach us, He was observing the regulative principles of a sannyāsī very, very strictly. These things, to teach us... Similarly, Haridāsa Ṭhākura, he's called Brahma-Haridāsa.