CC Madhya 7.130
sei aiche kahe, tāṅre karāya ei śikṣā
The cult of Śrī Caitanya Mahāprabhu is explained here very nicely. One who surrenders to Him and is ready to follow Him with heart and soul does not need to change his location. Nor is it necessary for one to change his status. One may remain a householder, a medical practitioner, an engineer or whatever. It doesn’t matter. One only has to follow the instruction of Śrī Caitanya Mahāprabhu, chant the Hare Kṛṣṇa mahā-mantra and instruct relatives and friends in the teachings of the Bhagavad-gītā and Śrīmad-Bhāgavatam. One has to learn humility and meekness at home, following the instructions of Śrī Caitanya Mahāprabhu, and in that way one’s life will be spiritually successful. One should not try to be an artificially advanced devotee, thinking, “I am a first-class devotee, so it is best not to accept any disciples.” Such thinking should be avoided. One has to become purified at home by chanting the Hare Kṛṣṇa mahā-mantra and preaching the principles enunciated by Śrī Caitanya Mahāprabhu. Thus one can become a spiritual master and be freed from the contamination of material life.
There are many sahajiyās who decry the activities of the six Gosvāmīs — Śrīla Rūpa, Sanātana, Raghunātha dāsa, Bhaṭṭa Raghunātha, Jīva and Gopāla Bhaṭṭa Gosvāmīs — who are the personal associates of Śrī Caitanya Mahāprabhu and who enlightened society by writing books on devotional service. Similarly, Narottama dāsa Ṭhākura and other great ācāryas like Madhvācārya, Rāmānujācārya and others accepted many thousands of disciples to induce them to render devotional service. However, there is a class of sahajiyās who think that these activities are opposed to the principles of devotional service. Indeed, they consider such activities simply another phase of materialism. Thus opposing the principles of Śrī Caitanya Mahāprabhu, they commit offenses at His lotus feet. They should better consider His instructions and, instead of seeking to be considered humble and meek, should refrain from criticizing the followers of Śrī Caitanya Mahāprabhu who engage in preaching. To protect His preachers, Śrī Caitanya Mahāprabhu has given much clear advice in these verses of Śrī Caitanya-caritāmṛta.