If one is fortunate enough to take shelter of a pure devotee, hear from him about self-realization and follow in his footsteps, one will be gradually elevated to the position of a pure devotee. In this verse particularly, the process of hearing is strongly recommended, and this is very appropriate. Although the common man is often not as capable as so-called philosophers, faithful hearing from an authoritative person will help one transcend this material existence and go back to Godhead, back to home.
(Bhagavad-Gita------13:26------purport).

The artificial means of the yogic processes to make the senses inactive has proved to be abject failure, even in the case of great yogīs like Viśvāmitra Muni. Viśvāmitra Muni controlled the senses by yogic trance, but when he happened to meet Menakā (a heavenly society woman), he became a victim of sex, and the artificial way of controlling the senses failed. But in the case of a pure devotee, the senses are not at all artificially stopped from doing anything, but they are given different good engagements. When the senses are engaged in more attractive activities, there is no chance of their being attracted by any inferior engagements.
(Srimad Bhagavatam-------1:10:23-------purport).

Devotion for Lord Kṛṣṇa means negation of all material attachments as detailed above. By the grace of Lord Kṛṣṇa, Mahārāja Parīkṣit was awarded all material amenities and an undisputed kingdom in which to enjoy the undisturbed position of king, but by the grace of the Lord he was able to give up all connections with material attachment. That is the position of a pure devotee. Mahārāja Parīkṣit, due to his natural affection for Lord Kṛṣṇa as a devotee of the Lord, was always executing his royal duties on behalf of the Lord, and as a responsible king of the world he was always careful to see that the influence of Kali would not enter his kingdom.
(Srimad Bhagavatam-------2:4:2-------purport).

Mother Yaśodā, of course, did not want to chastise her beloved child very much, and therefore she immediately threw her stick away and simply rebuked Kṛṣṇa, saying, "Now I shall bind You so that You cannot commit any further offensive activities. Nor for the time being can You play with Your playmates." This shows the position of a pure devotee, in contrast with others, like jñānīs, yogīs and the followers of Vedic ritualistic ceremonies, in regarding the transcendental nature of the Absolute Truth.
(Srimad Bhagavatam-------10:9:11-------purport).

As a wooden doll is made to dance by a magician, I write as Madana-gopāla orders me to do so. This is the position of a pure devotee. One should not take any responsibility on his own but should be a soul surrendered to the Supreme Personality of Godhead, who will then give him dictation as the caittya-guru, or the spiritual master within. The Supreme Personality of Godhead is pleased to guide a devotee from within and without. From within He guides him as the Supersoul, and from without He guides him as the spiritual master.
(Sri Caitanya Caritamrta------1:8:79-------translation and purport).

For the service of the Lord he can accept anything, even though it may be disagreeable to his personal interest. In fact, he is completely free from personal interest, and thus anything agreeable to the Lord is agreeable to him. For example, for Arjuna at first fighting was not agreeable, but when he understood that the fighting was agreeable to the Lord, he accepted the fighting as agreeable. That is the position of a pure devotee. For his personal interest there is nothing which is agreeable or disagreeable; everything is done for the Lord, and therefore he is free from attachment and detachment. That is the transcendental stage of neutrality. A pure devotee enjoys life in the pleasure of the Supreme Lord.
(Srimad Bhagavatam-------3:32:25-------purport).