If one is engaged in the transcendental loving service of Kṛṣṇa, then everything is perfect. That is the conclusion of Bhāgavata.
"Of all the yogis, one who is always thinking of Me, Kṛṣṇa, within his heart, he is first-class yogi." Similarly, when He explains about jñāna system, or philosophical speculation, He summarizes at the end, bahūnāṁ janmanām ante jñānavān māṁ prapadyate: (BG 7.19) "After many, many births of philosophical speculation, when the learned scholar or philosopher comes to this point..." What is that point? Vāsudevaḥ sarvam iti. Bahūnāṁ janmanām ante jñānavān māṁ prapadyate: (BG 7.19) "After many, many births' philosophical speculation, when one actually becomes scholar or wise, he surrenders unto Vasudeva, the Supreme Personality of Godhead." Why? Vāsudeva sarvam iti: "Because He is everything." This is the end of knowledge, when one understands that Vasudeva is everything. Similarly, yoga-pantha, the process of yoga, the process of jñāna, and the process of karma, fruitive activity. What is that? He summarizes in the Bhagavad-gītā, yat karoṣi yad juhoṣi yad aśnāsi yat tapasyasi kuruṣva tad mad-arpaṇam (BG 9.27). There are different kinds of activities. So Kṛṣṇa says "Whatever you do, it doesn't matter." If somebody says that "I am a businessman," "That's all right." "What is to be done?" "Now, you do business to your best capacity, but the profit give to Me. The profit is Mine." If you agree, then simply by doing business you become a great devotee. The same example: just like Arjuna. He is a fighter. So how he became so great devotee? By fighting. By fighting for whom? For Kṛṣṇa. "No. He fought for getting the kingdom." No, he did not fight for getting the kingdom. He said, "Better I shall forego. I don't want this kingdom by fighting with my relatives." He was very good man. But he agreed to fight for Kṛṣṇa. He changed his decision. Similarly, any work, if you do for Kṛṣṇa, that is bhakti. Don't think that bhakti means simply chanting Hare Kṛṣṇa and sitting down in one place. No. Bhakti means all kinds of activities. God is all-pervading; therefore bhakti is also all-pervading. From all spheres of life the devotional service can be done.
So these things are taught, those who are attached to work, for them; those who are attached to philosophy, for them; those who are attached to yoga system, for them; and those who are devotees, for them it is certainly. So from all angles of vision, when one comes to the point that kṛṣṇe bhakti kaile sarva-karma kṛta haya, if one is engaged in the transcendental loving service of Kṛṣṇa, then everything is perfect. That is the conclusion of Bhāgavata. Svanuṣṭhitasya dharmasya saṁsiddhir hari-toṣaṇam (SB 1.2.13).