SB 2.9.22

The highest perfectional stage of life is to know the Lord by actual perception, by the grace of the Lord. This can be attained by everyone who is willing to discharge the act of devotional service to the Lord as enjoined in the revealed scriptures that are standard and accepted by the bona fide ācāryas, spiritual masters. For example, the Bhagavad-gītā is the approved Vedic literature accepted by all the great ācāryas, such as Śaṅkara, Rāmānuja, Madhva, Caitanya, Viśvanātha, Baladeva, Siddhānta Sarasvatī and many others. In that Bhagavad-gītā the Personality of Godhead, Śrī Kṛṣṇa, asks that one always be mindful of Him, always be His devotee, always worship Him only, and always bow down before the Lord. And by doing so one is sure to go back home, back to Godhead, without any doubt. In other places also the same order is there, that one give up all other engagements and fully surrender unto the Lord without hesitation. And the Lord will give such a devotee all protection. These are the secrets of attaining the highest perfectional stage. Lord Brahmā exactly followed these principles without any superiority complex, and thus he attained the highest perfectional stage of experiencing the abode of the Lord and the Lord Himself with all His paraphernalia. Impersonal realization of the effulgence of the Lord’s body is not the highest perfectional stage, nor is the stage of Paramātmā realization. The word manīṣita is significant. Everyone is falsely or factually proud of his so-called learning. But the Lord says that the highest perfectional stage of learning is to know Him and His abode, devoid of all illusion.