One begins spiritual activities for advancement in Kṛṣṇa consciousness by hearing. Hearing is the most important method for advancement, and one should be very eager to hear favorably about Kṛṣṇa. Giving up all speculation and fruitive activity, one should simply worship and desire to attain to love of God. That love of God is eternally existing within everyone; it simply has to be evoked by the process of hearing. Hearing and chanting are the principal methods of devotional service.
Devotional service may be regulative or affectionate. One who has not developed transcendental affection for Kṛṣṇa should conduct his life according to the directions and regulations of the scriptures and the spiritual master. In Śrīmad-Bhāgavatam (2.1.5) Śukadeva Gosvāmī advises Mahārāja Parīkṣit:
- tasmād bhārata sarvātmā
- bhagavān īśvaro hariḥ
- śrotavyaḥ kīrtitavyaś ca
- smartavyaś cecchatābhayam
"O best of the Bhāratas, it is the prime duty of persons who want to become fearless to hear about the Supreme Personality of Godhead, Hari, and to chant about Him and always remember Him. Lord Viṣṇu is always to be remembered; indeed, He is not to be forgotten for even a moment. He is the sum and substance of all regulative principles." The conclusion is that when all the rules, regulations, recommended and prohibited activities revealed in scriptures are taken together, the remembrance of the Supreme Lord is invariably the essence of everything. Remembrance of the Supreme Personality of Godhead within one's heart is the goal of devotional service. When devotional service is performed purely and affectionately, there is no question of regulative principles. There are no do's and don't's.
However, one should generally accept the following principles to properly execute devotional service: (1) take shelter of a bona fide spiritual master, (2) receive initiation from the spiritual master, (3) serve the spiritual master, (4) inquire and learn love from the spiritual master, (5) follow in the footsteps of holy persons devoted to the transcendental loving service of the Lord, (6) prepare to give up all kinds of enjoyment and miseries for the satisfaction of Kṛṣṇa, (7) live in a place where Kṛṣṇa had His pastimes, (8) be satisfied by whatever is sent by Kṛṣṇa for the maintenance of the body and hanker for no more, (9) observe fasting on Ekādaśī day (this occurs on the eleventh day after the full moon and the eleventh day after the new moon. On such days no grains, cereals or beans are eaten; simply vegetables and milk are moderately taken, and chanting Hare Kṛṣṇa and reading scriptures are increased.), (10) show respect to devotees, cows and sacred trees like the banyan tree.
It is essential for a neophyte devotee who is beginning to follow the path of devotional service to observe these ten principles. One should also try to avoid offenses in serving the Lord and in chanting His holy names. There are ten kinds of offenses which one can commit while chanting the holy name, and they should be avoided. These offenses are: (1) blaspheming a devotee of the Lord, (2) considering the Lord and the demigods on the same level or thinking that there are many gods, (3) neglecting the orders of the spiritual master, (4) minimizing the authority of the scriptures (the Vedas), (5) interpreting the holy names of God, (6) committing sins on the strength of chanting, (7) instructing the glories of the Lord's names to the unfaithful, (8) comparing the holy name with material piety, (9) being inattentive while chanting the holy name, (10) remaining attached to material things in spite of chanting the holy names. Ten additional regulations are as follows: (1) one should try to avoid offenses in the service of the Lord and in chanting the holy names of the Lord; (2) one should avoid the association of unholy nondevotees; (3) one should not attempt to have many disciples; (4) one should not take the trouble to understand many books or to understand partially any particular book, and one should avoid discussing different doctrines; (5) one should be composed both in gain and in loss; (6) one should not be subject to any kind of lamentation; (7) one should not disrespect the demigods or other scriptures; (8) one should not tolerate blasphemy against the Supreme Lord and His devotees; (9) one should avoid ordinary topics of novels and fiction, but there is no injunction that one should avoid hearing ordinary news; (10) one should not give any trouble to any living creature, including a small bug.
In Bhakti-rasāmṛta-sindhu compiled by Śrī Rūpa Gosvāmī it is said that one should be very liberal in behavior and should avoid any undesirable activities. The most important affirmative points are that one should accept the shelter of a bona fide spiritual master, be initiated by him and serve him.