Our material body is an infection. Actually, we spiritual soul, we have no death. It is due to this infection. This infection is called dirty things. Actually it is dirt. "Dust thou art, dust thou be-ist," that's a fact. Because as soon as I, the soul, will leave this body, it will be immediately decomposed, and after a few days it will be earth, dust. So actually it is dirt. So we have to cleanse this dirt from my real identity, spiritual life.
This is the process. And this cleansing process is very nicely done simply by hearing the message of Uttama-śloka, or Kṛṣṇa. You haven't got to scratch it with some machine. No. It will be automatically cleansed if you simply give aural reception to the message of the Uttama-śloka, which is, in other word, it is called kṛṣṇa-kathā. Kṛṣṇa-kathā means words of Kṛṣṇa. Kathā means words, and kṛṣṇa, you understand. So kṛṣṇa-kathā, Bhagavad-gītā, Kṛṣṇa personally giving you words of instruction. So if we simply read Bhagavad-gītā, then the sun cannot take away the, my duration of life.
How? What is the proof? The proof is the Bhagavad-gītā. In the Bhagavad-gītā the Lord says, janma karma me divyaṁ yo jānāti tattvataḥ (BG 4.9): "Anyone who understands about My birth and appearance . . ." Lord does not take birth. Aja. Aja means who never takes birth. Ever-existing. Ajo 'pi sann avyayātmā bhūtānām īśvaro 'pi san (BG 4.6), sambhavāmi yuge yuge (BG 4.8). So aja, one who does not take birth, but still we see that Kṛṣṇa is taking birth. We are observing the birth anniversary of Lord Kṛṣṇa. So therefore what is the mystery? He does not take birth.