Below is much information about how to chant the maha mantra-Hare Krsna
What I found interesting in the purport below is that SP equates a preacher or 2nd class devotee with a sannyasi. He wanted all his disciples to become at least 2nd class Vaisnavas.
Adi 7.67 purport–A Vaiṣṇava sannyāsī or a Vaiṣṇava in the second stage of advancement in spiritual knowledge can understand four principles-namely, the Supreme Personality of Godhead, the devotees, the innocent and the jealous-and he behaves differently with each. He tries to increase his love for Godhead, make friendship with devotees and preach Kṛṣṇa consciousness among the innocent, but he avoids the jealous who are envious of the Kṛṣṇa consciousness movement.
Feb 11 1977arcāyām eva haraye yaḥ pūjāṁ śraddhayehate na tad-bhakteṣu cānyeṣu sa bhaktaḥ prākṛtaḥ smṛtaḥPrākṛtaḥ stage, so prakṛtaḥ stage means just like we are worshiping The Deity, but not only we shall worship Deity but we make advancement. What is that advancement? To become gradually a preacher. That is madhyama-adhikārī, second stage, preacher. Preacher means that, īśvare tad-adhīneṣu bāliśeṣu dviṣatsu ca prema-maitrī-kṛpā upekṣāḥ yaḥ karoti sa madhyamaḥ When you become fully Kṛṣṇa conscious by worshiping the Deity regularly, as we have got prescription to rise early in the morning, offer maṅgala-ārati, then kīrtana, then class, in this way practicing, practicing. When you become advanced Kṛṣṇa conscious, then your natural tendency will be how to preach. So long you do not develop this tendency for preaching, simply remain in kaniṣṭha-adhikārī, you do not know how to deliver others, na tad-bhakteṣu cānyeṣu, you do not know how to receive elevated, one elevated devotee, you do not know how to do good to others. So Caitanya Mahāprabhu’s mission is not to keep one in the kaniṣṭha-adhikārī, especially those who are born in India.
Adi 7.72 purport... A spiritual master knows very well how to engage each disciple in a particular duty, but if a disciple, thinking himself more advanced than his spiritual master, gives up his orders and acts independently, he checks his own spiritual progress. Every disciple must consider himself completely unaware of the science of Kṛṣṇa and must always be ready to carry out the orders of the spiritual master to become competent in Kṛṣṇa consciousness. A disciple should always remain a fool before his spiritual master. Therefore sometimes pseudospiritualists accept a spiritual master who is not even fit to become a disciple because they want to keep him under their control. This is useless for spiritual realization.
Adi 7.73 purport-In his Anubhāṣya, Śrī Bhaktisiddhānta Sarasvatī Gosvāmī says that the actual effect that will be visible as soon as one achieves transcendental knowledge is that he will immediately become free from the clutches of māyā and fully engage in the service of the Lord. Unless one serves the Supreme Personality of Godhead Mukunda, one cannot become free from fruitive activities under the external energy. However, when one chants the holy name of the Lord offenselessly, one can realize a transcendental position that is completely aloof from the material conception of life. ….According to the Vedic principles, there are three stages of spiritual advancement, namely, sambandha-jñāna, abhidheya and prayojana. Sambandha-jñāna refers to establishing one’s original relationship with the Supreme Personality of Godhead, abhidheya refers to acting according to that constitutional relationship, and prayojana is the ultimate goal of life, which is to develop love of Godhead (premā pum-artho mahān). If one adheres to the regulative principles under the order of the spiritual master, he very easily achieves the ultimate goal of his life. A person who is addicted to the chanting of the Hare Kṛṣṇa mantra very easily gets the opportunity to serve the Supreme Personality of Godhead directly.
Lord Caitanya’s spiritual master instructed Him, therefore, that one must read Śrīmad-Bhāgavatam regularly and with scrutiny to gradually become attached to the chanting of the Hare Kṛṣṇa mahā-mantra.The holy name and the Lord are identical. One who is completely free from the clutches of māyā can understand this fact. This knowledge, which is achieved by the mercy of the spiritual master, places one on the supreme transcendental platform. Śrī Caitanya Mahāprabhu presented Himself as a fool because prior to accepting the shelter of a spiritual master He could not understand that simply by chanting one can be relieved from all material conditions. But as soon as He became a faithful servant of His spiritual master and followed his instructions, He very easily saw the path of liberation.
Adi 7.74 purport…The principles of the paramparā system were strictly honored in previous ages-Satya-yuga, Tretā-yuga and Dvāpara-yuga-but in the present age, Kali-yuga, people neglect the importance of this system of śrauta-paramparā, or receiving knowledge by disciplic succession. In this age, people are prepared to argue that they can understand that which is beyond their limited knowledge and perception through so-called scientific observations and experiments, not knowing that actual truth comes down to man from authorities. This argumentative attitude is against the Vedic principles, and it is very difficult for one who adopts it to understand that the holy name of Kṛṣṇa is as good as Kṛṣṇa Himself.
Adi 7.76 purport...To chant the holy name of the Lord, one need not depend upon other paraphernalia, for one can immediately get all the desired results of connecting or linking with the Supreme Personality of Godhead. It may therefore be questioned why there is a necessity for initiation or further spiritual activities in devotional service for one who engages in the chanting of the holy name of the Lord. The answer is that although it is correct that one who fully engages in chanting the holy name need not depend upon the process of initiation, generally a devotee is addicted to many abominable material habits due to material contamination from his previous life. In order to get quick relief from all these contaminations, it is required that one engage in the worship of the Lord in the temple.The worship of the Deity in the temple is essential to reduce one’s restlessness due to the contaminations of conditioned life. Thus Nārada, in his pāñcarātrikī-vidhi, and other great sages have sometimes stressed that since every conditioned soul has a bodily concept of life aimed at sense enjoyment, to restrict this sense enjoyment the rules and regulations for worshiping the Deity in the temple are essential. Śrīla Rūpa Gosvāmī has described that the holy name of the Lord can be chanted by liberated souls, but almost all the souls we have to initiate are conditioned. It is advised that one chant the holy name of the Lord without offenses and according to the regulative principles, yet due to their past bad habits they violate these rules and regulations. Thus the regulative principles for worship of the Deity are also simultaneously essential.
Adi 7.79purport-Śrī Caitanya Mahāprabhu hints in this verse that to chant the holy name of Kṛṣṇa one does not need to speculate on the philosophical aspects of the science of God, for one automatically becomes ecstatic and without consideration immediately chants, dances, laughs, cries and sings just like a madman.
Adi 7.80 purport-Śrī Caitanya Mahāprabhu, as an ideal teacher, shows us how a disciple should deal with his spiritual master. Whenever there is doubt regarding any point, he should refer the matter to his spiritual master for clarification. Śrī Caitanya Mahāprabhu said that while chanting and dancing He had developed the kind of mad ecstasy that is possible only for a liberated soul. Yet even in His liberated position, He referred everything to His spiritual master whenever there were doubts. Thus in any condition, even when liberated, we should never think ourselves independent of the spiritual master, but must refer to him as soon as there is some doubt regarding our progressive spiritual life.
Adi 7.81…purport...”O Govinda! Feeling Your separation, I am considering a moment to be like twelve years or more. Tears are flowing from my eyes like torrents of rain, and I am feeling all vacant in the world in Your absence.” It is the aspiration of a devotee that while he chants the Hare Kṛṣṇa mahā-mantra his eyes will fill with tears, his voice falter and his heart throb. These are good signs in chanting the holy name of the Lord.
Adi 7.83 purport... In this verse it is explained that one who chants the Hare Krsna mantra develops bhava, ecstasy, which is the point at which revelation begins. It is the preliminary stage in developing one\’s original love for God. A neophyte disciple begins by hearing and chanting, associating with devotees and practicing the regulative principles, and thus he vanquishes all of his unwanted bad habits. In this way he develops attachment for Kṛṣṇa and cannot forget Kṛṣṇa even for a moment. Bhāva is almost the successful stage of spiritual life. A sincere student aurally receives the holy name from the spiritual master, and after being initiated he follows the regulative principles given by the spiritual master. When the holy name is properly served in this way, automatically the spiritual nature of the holy name spreads; in other words, the devotee becomes qualified in offenselessly chanting the holy name.When one is completely fit to chant the holy name in this way, he is eligible to make disciples all over the world, and he actually becomes jagad-guru. Then the entire world, under his influence, begins to chant the holy names of the Hare Kṛṣṇa mahā-mantra. Thus all the disciples of such a spiritual master increase in attachment for Kṛṣṇa, and therefore he sometimes cries, sometimes laughs, sometimes dances and sometimes chants. These symptoms are very prominently manifest in the body of a pure devotee. Sometimes when our students of the Kṛṣṇa consciousness movement chant and dance, even in India people are astonished to see how these foreigners have learned to chant and dance in this ecstatic fashion. As explained by Caitanya Mahāprabhu, however, actually this is not due to practice, for without extra endeavor these symptoms become manifest in anyone who sincerely chants the Hare Kṛṣṇa mahā-mantra.Many fools, not knowing the transcendental nature of the Hare Kṛṣṇa mahā-mantra, sometimes impede our loudly chanting this mantra, yet one who is actually advanced in the fulfillment of chanting the Hare Kṛṣṇa mahā-mantra induces others to chant also. Kṛṣṇadāsa Kavirāja Gosvāmī explains, kṛṣṇa-śakti vinā nahe tāra pravartana; unless one receives special power of attorney from the Supreme Personality of Godhead, he cannot preach the glories of the Hare Kṛṣṇa mahā-mantra. As devotees propagate the Hare Kṛṣṇa mahā-mantra, the general population of the entire world gets the opportunity to understand the glories of the holy name. While chanting and dancing or hearing the holy name of the Lord, one automatically remembers the Supreme Personality of Godhead, and because there is no difference between the holy name and Kṛṣṇa, the chanter is immediately linked with Kṛṣṇa. Thus connected, a devotee develops his original attitude of service to the Lord. In this attitude of constantly serving Kṛṣṇa, which is called bhāva, he always thinks of Kṛṣṇa in many different ways. One who has attained this bhāva stage is no longer under the clutches of the illusory energy.When other spiritual ingredients, such as trembling, perspiration and tears, are added to this bhāva stage, the devotee gradually attains love of Kṛṣṇa.The holy name of Kṛṣṇa is called the mahā-mantra. Other mantras mentioned in the Nārada-pañcarātra are known simply as mantras, but the chanting of the holy name of the Lord is called the mahā-mantra.