As previously quoted, Bhagavad-gītā (10.10) also indicates that when a person becomes highly intelligent and engages in Kṛṣṇa consciousness, Kṛṣṇa reciprocates by giving him the intelligence by which he can be promoted to the abode of the Supreme Lord.
The Lord then told Sanātana Gosvāmī that the association of good devotees, engagement in the transcendental service of the Lord, the understanding of Śrīmad-Bhāgavatam, the chanting of the holy name of the Lord, and residence in a holy place like Vṛndāvana or Mathurā are all very important for elevation to the transcendental plane. One need not practice all five of these items; if one is expert in just one of them, he will, without fail, be elevated to the stage of love of Godhead. One who is actually intelligent gives up all material desires and engages in the transcendental service of Kṛṣṇa.