Unfortunately, we spoil this period, so we become less intelligent, life becomes shorter. If we spoil this period, then our life will be shortened. And if we keep this period complete celibacy, brahmacārī, then you can live up to hundred years. So this period is very nice. It is called nava-yauvana, just new youthful life. So Kṛṣṇa you'll find all new, always new youthful. You'll never find Kṛṣṇa's picture as old. Nava-yauvanaṁ ca.
Then again, it is said, vedeṣu durlabha.
(aside) What is that sound?
Vedeṣu durlabham. Vede means in the Vedic literature, if you make research work how Kṛṣṇa is, then it will be very difficult. Then you come to the impersonal only. Vedeṣu durlabham. You have to go beyond the Vedas. What is that? Vedeṣu durlabham adurlabham ātma-bhaktau (Bs. 5.33).
Kṛṣṇa is available through His confidential devotee. Not that if anyone has studied very nicely all Vedic literatures he'll understand Kṛṣṇa. No. Maybe, but it is very difficult. Kṛṣṇa can be delivered by His devotee, ātma-bhaktau. Therefore you have to take shelter of Kṛṣṇa's devotee. That is paramparā system.
If you want to understand Kṛṣṇa, if you want to have Kṛṣṇa . . . Bhaktivinoda Ṭhākura has sung a very nice song. He's praying to a Vaiṣṇava, vaiṣṇava ṭhākura tomāra kukkura bhuliyā jānaha more (from Śaraṇāgati): "Sir, Vaiṣṇava, you are Ṭhākura. You are as good as Kṛṣṇa, or God. Kindly accept me as your dog." Vaiṣṇava ṭhākura tomāra kukkura bhuliyā jāna . . . kukkura means dog. Just like dog follows the master very faithfully.