Nitāi: "What the Upaniṣads describe as the impersonal Brahman is but the effulgence of His body, and the Lord known as the Supersoul is but His localized plenary portion. He is the Supreme Personality of Godhead, Kṛṣṇa Himself, full with six opulences. He is the Absolute Truth, and no other truth is greater than or equal to Him."
Prabhupāda:
- yad advaitaṁ brahmopaniṣadi tad apy asya tanu-bhā
- ya ātmāntaryāmī puruṣa iti so asya aṁśa-vibhavaḥ
- ṣaḍ-aiśvaryaiḥ pūrṇaḥ ya bhagavān iha sa svayam ayaṁ
- na caitanyāt kṛṣṇāj jagati para-tattvaṁ param iha
- (CC Adi 1.3)
Now the author, Kṛṣṇadāsa Kavirāja Gosvāmī, is establishing with great stress that na caitanyāt kṛṣṇāt jagati para-tattvaṁ param iha: "There is no greater truth than Kṛṣṇa Caitanya." We are after truth, so here the author of Caitanya-caritāmṛta, he is asserting that "Here is the Supreme Truth, Śrī Caitanya Mahāprabhu." Na caitanyāt kṛṣṇāt. Kṛṣṇāt, because Kṛṣṇa has appeared as Kṛṣṇa Caitanya.
We have explained this truth yesterday, according to Sārvabhauma Bhaṭṭācārya's declaration, vairāgya-vidyā-nija-bhakti-yogaṁ-śikṣārtham ekaḥ puruṣaḥ purāṇaḥ (CC Madhya 6.254). Puruṣaḥ purāṇaḥ. Puruṣaḥ purāṇaḥ is Kṛṣṇa. Puruṣaḥ. He is puruṣaḥ, and purāṇaḥ, ādyam, the original person. Govindam ādi-puruṣaṁ tam ahaṁ bhajāmi. In many Vedic literature Kṛṣṇa is described as the purāṇaḥ puruṣaḥ, the oldest. Purāṇaḥ puruṣaḥ nava-yauvanaṁ ca (Bs. 5.33). Although He is the oldest of all, still, He is always like fresh youth, nava-yauvanaṁ ca. So how it is possible? They are trying to understand God. Sometimes they paint the picture of God as very old man. Because He is the original person, so by this time He must have become very old. This is imagination. This is not actually the form of the Lord.
The form of the Lord is there in the Brahma-saṁhitā and other Vedic literature. Even Śaṅkarācārya, who is a impersonalist, he has accepted Lord Kṛṣṇa as the supreme Nārāyaṇa. In his comment on Bhagavad-gītā he says, nārāyaṇaḥ paraḥ avyaktāt: "Nārāyaṇa is beyond this material creation." And while describing Nārāyaṇa, he has affirmed, sa bhagavān svayaṁ kṛṣṇaḥ: "That Nārāyaṇa is Kṛṣṇa." And he has clearly mentioned, "Now He has appeared as the son of Devakī and Vāsudeva," to confirm just like identification is confirmed when the father's name is there.