SB 1.6.37
suta uvaca
evam sambhasya bhagavan
narado vasavi-sutam
amantrya vinam ranayan
yayau yadrcchiko munih
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Suta Gosvami said: Thus addressing Vyasadeva, Srila Narada Muni took leave of him, and vibrating on his vina instrument, he left to wander at his free will.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
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 Narada, 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. We can just imagine the extent and unlimitedness of his freedom, which is as good as that of the Supreme Lord. There is no reason or obligation for his traveling, and no one can stop him from his free movement. Similarly, the transcendental system of devotional service is also free. It may or may not develop in a particular person even after he undergoes all the detailed formulas. Similarly, the association of the devotee is also free. One may be fortunate to have it, or one may not have it even after thousands of endeavors. Therefore, in all spheres of devotional service, freedom is the main pivot. Without freedom there is no execution of devotional service. The freedom surrendered to the Lord does not mean that the devotee becomes dependent in every respect. To surrender unto the Lord through the transparent medium of the spiritual master is to attain complete freedom of life.