“If one offers one’s activities to Lord Kṛṣṇa without trying to enjoy the results, one’s mind becomes purified. When the mind is purified, transcendental knowledge automatically manifests, since such knowledge is a by-product of pure consciousness. When the mind is absorbed in perfect knowledge, it can be raised to the spiritual platform, as described in Bhagavad-gītā (18.54):
brahma-bhūtaḥ prasannātmā na śocati na kānkṣati
samaḥ sarveṣu bhūteṣu mad-bhaktiṁ labhate parām
“One who is thus transcendentally situated at once realizes the Supreme Brahman. He never laments nor desires to have anything; he is equally disposed to every living entity. In that state he attains pure devotional service unto Me.”
By offering one’s activities to the Personality of Godhead, one purifies one’s mind to some extent and thus comes to the preliminary stage of spiritual awareness. Yet even then one may not be able to fix one’s mind completely on the spiritual platform. At that point one should realistically assess one’s position, noting the lingering material contamination within the mind. Then, as stated in this verse, one should intensify one’s practical devotional work in the service of the Lord. If one artificially considers oneself to be supremely liberated or if one becomes casual on the path of spiritual advancement, there is serious danger of a fall down.”
Source: A.C. Bhaktivedanta Swami Prabhupada (2014 edition), “Srimad Bhagavatam”, Eleventh Canto, Chapter 11 – Text 22.