SB 5.1.23
iti ha vava sa jagati-patir isvarecchayadhinivesita-karmadhikaro ’khila-jagad-bandha-dhvamsana-paranubhavasya bhagavata adi-purusasyanghri-yugalanavarata-dhyananubhavena parirandhita-kasayasayo ’vadato ’pi mana-vardhano mahatam mahitalam anusasasa.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Following the order of the Supreme Personality of Godhead, Maharaja Priyavrata fully engaged in worldly affairs, yet he always thought of the lotus feet of the Lord, which are the cause of liberation from all material attachment. Although Priyavrata Maharaja was completely freed from all material contamination, he ruled the material world just to honor the orders of his superiors.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
The words mana-vardhano mahatam (“just to show honor to superiors”) are very significant. Although Maharaja Priyavrata was already a liberated person and had no attraction for material things, he engaged himself fully in governmental affairs just to show respect to Lord Brahma. Arjuna had also acted in the same way. Arjuna had no desire to participate in political affairs or the fighting at Kuruksetra, but when ordered to do so by the Supreme Lord, Krsna, he executed those duties very nicely. One who always thinks of the lotus feet of the Lord is certainly above all the contamination of the material world. As stated in Bhagavad-gita:
yoginam api sarvesam
mad-gatenantaratmana
sraddhavan bhajate yo mam
sa me yuktatamo matah
“Of all yogis, he who always abides in Me with great faith, worshiping Me in transcendental loving service, is most intimately united with Me in yoga and is the highest of all.” (Bg. 6.47) Maharaja Priyavrata, therefore, was a liberated person and was among the highest of yogis, yet superficially he became the emperor of the universe in accordance with the order of Lord Brahma. Showing respect to his superior in this way was another of his extraordinary qualifications. As stated in Srimad-Bhagavatam (6.17.28):
narayana-parah sarve
na kutascana bibhyati
svargapavarga-narakesv
api tulyartha-darsinah
A devotee who is actually advanced is not afraid of anything, provided he has the opportunity to execute the order of the Supreme Personality of Godhead. This is the proper explanation of why Priyavrata engaged in worldly affairs although he was a liberated person. Also, only because of this principle does a maha-bhagavata, who has nothing to do with the material world, come down to the second platform of devotional service to preach the glories of the Lord all over the world.