Prabhupāda: (devotees repeating)
- rāja-vidyā rāja-guhyaṁ
- pavitram idam uttamam
- pratyakṣāvagamaṁ dharmyaṁ
- susukhaṁ kartum avyayam
- (BG 9.2)
So this knowledge, as we have begun yesterday, that idaṁ te,
- idaṁ tu te guhyatamaṁ
- pravakṣyāmy anasūyave
- jñānaṁ vijñāna-sahitaṁ
- yaj jñātvā mokṣyase 'śubhāt
Very important chapter, the most confidential knowledge, guhyatamam. And it is spoken by Kṛṣṇa, the Supreme Personality of Godhead. Even those who are liberated from this material contamination, they are called mukta-jīva, liberated soul. And there are nitya-mukta. Nitya-mukta and nitya-baddha. Nitya means eternally, and mukta means liberated. And again, nitya, eternally, baddha, conditioned. So just like there are many persons in the state who have never seen what is the prison life, and there are many persons in the state, the majority of one's life is passed in the prison. Similarly, there are two nature, material nature and the spiritual nature. What we are seeing, this nature, this universe, within the material nature... Similarly, there is another spiritual nature. That is stated in the Bhagavad-gītā, paras tasmāt tu bhāvo 'nyo 'vyakto 'vyaktāt sanātanaḥ (BG 8.20).
There is another nature. You cannot deny it. Where God's kingdom, creation, how far it is, and how widespread it is—by your imagination you cannot determine. The so-called advancement of scientific knowledge is useless in the estimation of the total creation. This creation, material creation, is one-fourth exhibition of the total creation. And the three-fourth exhibition of the total creation is the spiritual world. So there are also... Like here we have got so many planets and each planet is full of living entities, as this planet is full of living entities, similarly, in other planets, upper, middle, down, there are millions, millions of different types of living entities. It is a false statement that "Only on this planet there is living entities; in other planets there are no living entities." That is nonsensical. There are living entities exactly like this. Maybe the climate, the situation, little different. Just like your climate, India climate... Even on this planet there are different climatic situations, European, American, Australian, Asian. So that is God's varieties of creation.
So we have to take knowledge from the perfect person. So what is the difference between this material world and the spiritual world? In the material world we are conditioned, and in the spiritual world we are liberated. This is the difference. In material... What is conditioned life? Conditioned life means subjected to the rules and regulation of the material nature. That is conditioned life. Just like we have got this body. This is also a condition of the material nature. We have got different types of bodies, why? Because we are conditioned. According to our karma we have got different types of body, 8,400,000's of bodies. So liberated life means not to go under the condition of this material nature. That is liberated life. In the conditioned life there are four defects. Out of many other conditions, so far our knowledge is concerned, that is defective. Why? Because we commit mistakes. Every one of us, we commit mistake, we are illusioned, our senses are imperfect, and we have a tendency to cheat. This is four defects of conditioned life. But the liberated life they have no such conditions.