Every living being is anxious for full freedom because that is his transcendental nature. And this freedom is obtained only through the transcendental service of the Lord. Illusioned by the external energy, everyone thinks that he is free, but actually he is bound up by the laws of nature. A conditioned soul cannot freely move from one place to another even on this earth, and what to speak of one planet to another. But a full-fledged free soul like Nārada, always engaged in chanting the Lord's glory, is free to move not only on earth but also in any part of the universe, as well as in any part of the spiritual sky.
(Srimad Bhagavatam----1:6:37----purport).

Śrī Nārada Muni plays on his instrument to glorify the transcendental activities of the Lord and to give relief to all miserable living entities of the universe. No one is happy here within the universe, and what is felt as happiness is māyā's illusion. The illusory energy of the Lord is so strong that even the hog who lives on filthy stool feels happy. No one can be truly happy within the material world. Śrīla Nārada Muni, in order to enlighten the miserable inhabitants, wanders everywhere. His mission is to get them back home, back to Godhead. That is the mission of all genuine devotees of the Lord following the footsteps of that great sage.
(Srimad Bhagavatam----1:6:38----purport).

The synopsis of Śrīmad-Bhāgavatam was given before the detailed description under instruction of Nārada. Śrīmad-Bhāgavatam is the science for following the path of nivṛtti-mārga. The path of pravṛtti-mārga was condemned by Nārada. That path is the natural inclination for all conditioned souls. The theme of Śrīmad-Bhāgavatam is the cure of the materialistic disease of the human being, or stopping completely the pangs of material existence.
(Srimad Bhagavatam----1:7:8----purport).

By the mercy of Śrī Nārada, Śrīla Vyāsadeva was able to narrate the great epic of Śrīmad-Bhāgavatam, and by the mercy of Vyāsadeva, Śrīla Śukadeva Gosvāmī was able to grasp the import.
(Srimad Bhagavatam----1:7:11----purport).

Parvata Muni: is considered to be one of the oldest sages. He is almost always a constant companion of Nārada Muni. They are also spacemen competent to travel in the air without the help of any material vehicle. Parvata Muni is also a devarṣi, or a great sage amongst the demigods, like Nārada. He was present along with Nārada at the sacrificial ceremony of Mahārāja Janamejaya, son of Mahārāja Parīkṣit. In this sacrifice all the snakes of the world were to be killed. Parvata Muni and Nārada Muni are called Gandharvas also because they can travel in the air singing the glories of the Lord. Since they can travel in the air, they observed Draupadī's svayaṁvara ceremony (selecting of her own husband) from the air. Like Nārada Muni, Parvata Muni also used to visit the royal assembly in the heaven of King Indra. As a Gandharva, sometimes he visited the royal assembly of Kuvera, one of the important demigods. Both Nārada and Parvata were once in trouble with the daughter of Mahārāja Sṛñjaya. Mahārāja Sṛñjaya got the benediction of a son by Parvata Muni.
Nārada Muni: is inevitably associated with the narrations of the Purāṇas. He is described in the Bhāgavatam. In his previous life he was the son of a maidservant, but by good association with pure devotees he became enlightened in devotional service, and in the next life he became a perfect man comparable with himself only. In the Mahābhārata his name is mentioned in many places. He is the principle devarṣi, or the chief sage amongst the demigods. He is the son and disciple of Brahmājī, and from him the disciplic succession in the line of Brahmā has been spread. He initiated Prahlāda Mahārāja, Dhruva Mahārāja and many celebrated devotees of the Lord. He initiated even Vyāsadeva, the author of the Vedic literatures, and from Vyāsadeva, Madhvācārya was initiated, and thus the Madhva-sampradāya, in which the Gauḍīya-sampradāya is also included, has spread all over the universe. Śrī Caitanya Mahāprabhu belonged to this Madhva-sampradāya; therefore, Brahmājī, Nārada, Vyāsa, down to Madhva, Caitanya and the Gosvāmīs all belonged to the same line of disciplic succession. Nāradajī has instructed many kings from time immemorial. In the Bhāgavatam we can see that he instructed Prahlāda Mahārāja while he was in the womb of his mother, and he instructed Vasudeva, father of Kṛṣṇa, as well as Mahārāja Yudhiṣṭhira.
(Srimad Bhagavatam----1:9:6-7----purport).

Saintly persons like Vidura must be treated as well as a denizen from heaven. In those days denizens of heavenly planets used to visit homes like that of Mahārāja Yudhiṣṭhira, and sometimes persons like Arjuna and others used to visit higher planets. Nārada is a spaceman who can travel unrestrictedly, not only within the material universes but also in the spiritual universes. Even Nārada used to visit the palace of Mahārāja Yudhiṣṭhira and what to speak of other celestial demigods. It is only the spiritual culture of the people concerned that makes interplanetary travel possible, even in the present body. Mahārāja Yudhiṣṭhira therefore received Vidura in the manner of reception offered to the demigods.
(Srimad Bhagavatam----1:13:14----purport).

Devarṣi Nārada is described herein as bhagavān due to his being the most confidential devotee of the Lord. The Lord and His very confidential devotees are treated on the same level by those who are actually engaged in the loving service of the Lord. Such confidential devotees of the Lord are very much dear to the Lord because they travel everywhere to preach the glories of the Lord in different capacities and try their utmost to convert the nondevotees of the Lord into devotees in order to bring them to the platform of sanity. Actually a living being cannot be a nondevotee of the Lord because of his constitutional position, but when one becomes a nondevotee or nonbeliever, it is to be understood that the person concerned is not in a sound condition of life. The confidential devotees of the Lord treat such illusioned living beings, and therefore they are most pleasing in the eyes of the Lord. The Lord says in the Bhagavad-gītā that no one is dearer to Him than one who actually preaches the glories of the Lord to convert the nonbelievers and nondevotees. Such personalities as Nārada must be offered all due respects, like those offered to the Personality of Godhead Himself, and Mahārāja Yudhiṣṭhira, along with his noble brothers, were examples for others in receiving a pure devotee of the Lord like Nārada, who had no other business save and except singing the glories of the Lord along with his vīṇā, a musical stringed instrument.
(Srimad Bhagavatam----1:13:38----purport).

There are different types of philosophers, and the greatest of all of them are those who have seen the Personality of Godhead and have surrendered themselves in the transcendental loving service of the Lord. Among all such pure devotees of the Lord, Devarṣi Nārada is the chief, and therefore he has been described herein as the greatest of all philosopher devotees. Unless one has become a sufficiently learned philosopher by hearing the Vedānta philosophy from a bona fide spiritual master, one cannot be a learned philosopher devotee. One must be very faithful, learned and renounced, otherwise one cannot be a pure devotee. A pure devotee of the Lord can give us direction towards the other end of nescience. Devarṣi Nārada used to visit the palace of Mahārāja Yudhiṣṭhira because the Pāṇḍavas were all pure devotees of the Lord, and the Devarṣi was always ready to give them good counsel whenever needed.
(Srimad Bhagavatam----1:13:40----purport).

Śrī Nāradajī is an eternal spaceman, having been endowed with a spiritual body by the grace of the Lord. He can travel in the outer spaces of both the material and spiritual worlds without restriction and can approach any planet in unlimited space within no time. We have already discussed his previous life as the son of a maidservant. Because of his association with pure devotees, he was elevated to the position of an eternal spaceman and thus had freedom of movement. One should therefore try to follow in the footsteps of Nārada Muni and not make a futile effort to reach other planets by mechanical means. Mahārāja Yudhiṣṭhira was a pious king, and therefore he could see Nārada Muni occasionally; anyone who desires to see NāradaMuni must first be pious and follow in the footsteps of Nārada Muni.
(Srimad Bhagavatam----1:13:60----purport).

Brahmā, on being questioned by Nārada, told Nārada exactly what he had heard directly from the Lord. Nārada again told exactly the same thing to Vyāsa, and Vyāsa also told Śukadeva exactly what he heard from Nārada. And Śukadeva was going to repeat the same statements as he had heard them from Vyāsa. That is the way of Vedic understanding. The language of the Vedas can be revealed only by the above-mentioned disciplic succession, and not otherwise.
(Srimad Bhagavatam----2:4:25----purport).

Devarṣi Nārada was directly instructed by Brahmājī, who was also directly instructed by the Supreme Lord; therefore the instructions imparted by Nārada to his various disciples are as good as those of the Supreme Lord. That is the way of understanding Vedic knowledge. It comes down from the Lord by disciplic succession, and this transcendental knowledge is distributed to the world by this descending process. There is no chance, however, to receive the Vedic knowledge from mental speculators. Therefore, wherever Nārada Munigoes, he represents himself as authorized by the Lord, and his appearance is as good as that of the Supreme Lord.
(Srimad Bhagavatam----2:8:1----purport).

Brahmājī previously told Nārada that the desires of Brahmājī are never unfulfilled because he is always absorbed in the transcendental loving service of the Lord; nor has he any desire in his heart save and except the transcendental service of the Lord. That is the beauty and mystery of the process of bhakti-yoga. As the Lord's desire is infallible because He is acyuta, similarly the desires of the devotees in the transcendental service of the Lord are also acyuta, infallible.
(Srimad Bhagavatam----2:9:35----purport).

Lord Brahmā, being the creator of all living beings in the universe, is originally the father of several well-known sons, like Dakṣa, the catuḥ-sanas, and Nārada. In three departments of human knowledge disseminated by the Vedas, namely fruitive work (karma-kāṇḍa), transcendental knowledge (jñāna-kāṇḍa), and devotional service (upāsanā-kāṇḍa),Devarṣi Nārada inherited from his father Brahmā devotional service, whereas Dakṣa inherited from his father fruitive work, and Sanaka, Sanātana, etc., inherited from their father information about jñāna-kāṇḍa, or transcendental knowledge. But out of them all, Nārada is described here as the most beloved son of Brahmā because of good behavior, obedience, meekness and readiness to render service unto the father. And Nārada is famous as the greatest of all sages because of his being the greatest of all devotees.
(Srimad Bhagavatam----2:9:42----purport).

Nārada is the spiritual master of many famous devotees of the Lord. He is the spiritual master of Prahlāda, Dhruva and Vyāsa, down to the forest animal hunter Kirāta. His only business is to turn everyone to the transcendental loving service of the Lord. Therefore all these features of Nārada make him the dearmost son of his father, and all this is due toNārada's being a first-class devotee of the Lord.
(Srimad Bhagavatam----2:9:42----purport).

Nārada was born from the best deliberation of Brahmā because Nārada was able to deliver the Supreme Lord to anyone he liked. The Supreme Personality of Godhead cannot be realized by any amount of Vedic knowledge or by any number of penances. But a pure devotee of the Lord like Nārada can deliver the Supreme Lord by his good will. The very name Nārada suggests that he can deliver the Supreme Lord. Nāra means the "Supreme Lord," and da means "one who can deliver." That he can deliver the Supreme Lord does not mean that the Lord is like a commodity that can be delivered to any person. But Nārada can deliver to anyone the transcendental loving service of the Lord as a servitor, friend, parent or lover, as one may desire out of one's own transcendental love for the Lord. In other words, it is Nārada only who can deliver the path of bhakti-yoga, the highest mystic means for attainment of the Supreme Lord.
(Srimad Bhagavatam----3:12:23----purport).