The soul is eternal and the body is temporary. It is changing every minute. Just like from our mother's womb, our first birth takes place between the father and mother. Two secretions emulsified, forms into a pealike body, a small pealike body. First night the soul takes shelter within that body, and the mother supplies the energy, and it develops. From that pea it becomes a small body, but the small body becomes greater and greater, and when it is fit for developing, or increasing in this material atmosphere, mother delivers the child and again it becomes developing.
So developing means changing the body. Child's body . . . every one of us had a body like a child, baby, but that body is now missing; we have got a different body. Young man has got a different body, old man has got a different body. So this is a fact, that the soul is there, but body is changing. Therefore the natural conclusion should be that when we leave this body, I take another body.There is no difficulty to understand this reasonable proposition of Bhagavad-gītā.
- dehino 'smin yathā dehe
- kaumāraṁ yauvanaṁ jarā
- tathā dehāntara-prāptir . . .
- (BG 2.13)
As dehāntaram, from childhood to boyhood, boyhood to youthhood, is dehāntaram, another body, similarly, old man, when the body is not . . . very old, it cannot be used anymore, or the supply ingredients is almost finished, then this body we give up, we accept another body. Now this body we are changing from multiforms of body, jalajā nava-lakṣāni sthāvarā lakṣa-viṁśati kṛmayo rudra-saṅkyakāḥ (Viṣṇu Purāṇa), in this way 8,400,000 species of body we are changing.
And this human form is the greatest benediction for the soul to understand Kṛṣṇa. And Kṛṣṇa says if in this body we try to understand Kṛṣṇa, janma karma me divyam yo jānāti tattvataḥ (BG 4.9), if we simply try to understand Kṛṣṇa, how Kṛṣṇa comes, what is His business, paritrāṇāya sādhunaṁ vināśāya ca duṣkṛtaṁ dharma-saṁsthāpanārthāya (BG 4.8), what kind of religious principle He re-establishes, sambhavāmi yuge yuge.
So these things are explained very nicely in the Bhagavad-gītā. Everyone in India knows Bhagavad-gītā, and not only in India, throughout the whole world Bhagavad-gītā is very well known and widely read book of knowledge. I have traveled all over the world. In every country there are different language, translations of Bhagavad-gītā, and in Japanese countries there is Bhagavad-gītā, in Muslim country there is Bhagavad-gītā. So Bhagavad-gītā is the universal book of knowledge, and our Kṛṣṇa consciousness movement is based on this Bhagavad-gītā.