There are many other instances showing that a devotee needn't practice anything but Kṛṣṇa consciousness; all the good qualities of the demigods automatically develop within him. Those who are intentionally practicing to be vegetarians or to become nonviolent may have good qualifications by a material estimation, but these qualifications are not sufficient to make them devotees. A vegetarian is not necessarily a devotee, nor is a nonviolent person. But a devotee is automatically both vegetarian and nonviolent. We must conclude, therefore, that vegetarianism or nonviolence is not the cause of devotion.
In this connection, there is a story in the Skanda Purāṇa about a hunter who was converted into a great devotee under the instruction of Nārada Muni. When the hunter became a perfect devotee, he was not prepared even to kill an ant. Parvata Muni, a friend of Nārada's, saw the wonderful transformation of the hunter by devotional service, and remarked: "My dear hunter, your unwillingness to kill even an ant is not very astonishing. Any person who develops the devotional attitude has all the good qualities automatically manifested in his person. A devotee is never a cause of distress to anyone."
Śrī Rūpa Gosvāmī affirms herein that purification of consciousness, purification of bodily activities, austerities, peace of mind, etc., all become automatically manifest in the person who is engaged in devotional service.
Śrī Rūpa Gosvāmī affirms herein that there are nine different kinds of devotional service, which are listed as hearing, chanting, remembering, serving, worshiping the Deity in the temple, praying, carrying out orders, serving Him as a friend and sacrificing everything for Him. Each and every one of these processes is so powerful that if anyone follows even one single one of them, he can achieve the desired perfection without fail. For example, if one is attached simply to hearing about the Lord, and another is attached to chanting the glories of the name, both will achieve their desired goal in devotional service. In the Caitanya-caritāmṛta this has been explained. One may execute one, two, three or all the different processes of devotional service, and at the ultimate end he will achieve the desired goal of being established in devotional service.
There are concrete examples of how a devotee discharged one of these services and achieved perfection. King Parīkṣit achieved the desired goal of life simply by hearing Śrīmad-Bhāgavatam. Śukadeva Gosvāmī achieved the desired goal of life simply by reciting Śrīmad-Bhāgavatam. Prahlāda Mahārāj became successful in his devotional service by always remembering the Lord. Lakṣmī, the goddess of fortune, was successful by engaging herself in massaging the lotus feet of the Lord. King Pṛthu became successful by worshiping in the temple. Akrūra became successful by offering prayers. Hanumān became successful by rendering personal service to Lord Rāmacandra. Arjuna became successful by being a friend of Kṛṣṇa. And Bali Mahārāj became successful simply by offering all of his possessions to Kṛṣṇa.