Text 43] The Advent of Lord Krṣṇa: Introduction
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When the living entity receives these different forms, he identifies with them, and not with his original, spiritual form. As soon as the living entity returns to his original, spiritual form and understanding, he immediately surrenders to the supreme form, the Personality of Godhead. This is explained in  Bhagavad-gītā  (7.19).  Bahūnām janmanām ante jñānavān mām prapadyate . When the living entity, after many, many births in different forms, returns to his original form of Krṣṇa consciousness, he immediately surrenders unto the lotus feet of the supreme form, Krṣṇa. This is liberation. As the Lord says in  Bhagavad-gītā  (18.54):
brahma-bhūtaḥ prasannātmā na śocati na kārikṣati samaḥ sarveṣu bhūteṣu mad-bhaktiṁ labhate parām
“One who is thus transcendentally situated at once realizes the Supreme Brahman and becomes fully joyful. 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.” Surrender unto the supreme form is the result of  bhakti . This  bhakti , or understanding of one’s own position, is the complete liberation. As long as one is under an impersonal understanding of the Absolute Truth, he is not in pure knowledge, but must still struggle for pure knowledge.  Kleśo ’dhikataras teṣām avyaktāsakta-cetasām  (Bg. 12.5). Although one may be spiritually advanced, if one is attached to the impersonal feature of the Absolute Truth one must still work very hard, as indicated by the words  kleśo ’dhikataraḥ , which mean “greater suffering.” A devotee, however, easily attains his original position as a spiritual form and understands the Supreme Personality of Godhead in His original form.
Krṣṇa Himself explains the forms of the living entities in the Second Chapter of  Bhagavad-gītā , where He clearly says to Arjuna that He, Arjuna and all other living entities, who were previously in their original forms, are separate individual identities. They were individuals in the past, they are now situated in individuality, and in the future they will all continue to maintain their individual forms. The only difference is that the conditioned living entity appears in various material forms,