Viṣṇu, or the Supreme Lord, expands Himself in two ways. One way is Viṣṇu expansion, and the other way is the jīva, these living entities expansion. We are also expansions of the Supreme Lord. Eko bahu śyāma. He alone, He has become so many. And why? What is the purpose of becoming so many? The purpose is ānandamayo 'bhyāsāt (Vedānta-sūtra 1.1.12). He wants to enjoy Himself with so many. So practically our creation is for enjoying in the company, in the association of the Supreme Lord. But we thought that it is better to become an imitation God and try to lord it over the material nature. That is not possible; therefore we are suffering.
- eita kahiluṅ śakty-āveśa-avatāra
- bālya-paugaṇḍa-dharmera śunaha vicāra
Now the Lord Caitanya Mahāprabhu is analyzing the characteristics of God, Kṛṣṇa. Now He has explained about His different incarnations. Now He says, about His ages, how the Lord is old. Lord never becomes old. Ādyaṁ purāṇa puruṣaṁ nava-yauvanaṁ ca (Bs. 5.33). In the Brahma-saṁhitā it is stated that, although He's the oldest personality, ādyam, because He's the original person from whom everything has come out. Everything has generated. So we living entities, we are also sons and grandsons of that Supreme Personality of Godhead. So the Brahma-saṁhitā says although He's the oldest person... In the Bhagavad-gītā He is stated by Arjuna as great-grandfather. Prapitāmahaś ca. You'll find this word in the Bhagavad-gītā. Because Brahmā is addressed as pitāmaha, grandfather. He's the original first creature in this material world, in this universe, and everyone has come from him. Therefore he is called pitāmaha. Pitāmaha means grandfather. And, because he's born also of Viṣṇu, therefore Viṣṇu is prapitāmaha (BG 11.39).
So the Supreme Lord, Personality of Godhead, is the oldest of all, but whenever you'll find, you'll find just like a young man. Ādyaṁ purāṇa puruṣaṁ nava-yauvanaṁ ca (Bs. 5.33). Nava-yauvanam means just a fresh youth. So that is being explained, explained by Lord Caitanya, the age of... This is another characteristics of God. Kiśora-śekhara-dharmī vrajendra-nandana. Kiśora-śekhara. Kiśora. Kiśora is... Kiśora age is called from eleven years to sixteen years. These teen years, or, in English, what is called? Adolescent? Yes. This, this age... So Kṛṣṇa represents Himself just like a boy from eleven to sixteen years old. Not more than that.