Vedic injunction is that if you want to learn that spiritual science, tad-vijñāna. . . Tat. Tat-vijñāna means spiritual science. Tad-vijñānārthaṁ sa gurum evābhigacchet (MU 1.2.12). This is the instruction. If you want to learn that spiritual science, then you must approach a bona fide guru. Gurum evābhigacchet. There are many śāstric injunction like that. Tasmād guruṁ prapadyeta jijñāsuḥ śreya uttamam (SB 11.3.21). And who requires a guru? Guru is not a fashion. It is necessary. How it is necessary? Now, anyone who is inquisitive to understand the spiritual science, for him it is necessary. Jijñāsuḥ sreya uttamam. Even if you want to become an ordinary electrician, still, you require a teacher. And what to speak of spiritual science? So that is necessary. Tad-vijñānārthaṁ sa gurum evābhigacchet.
So Arjuna followed it, and he submitted himself to Kṛṣṇa to become His disciple, not to talk as friend. So when he accepted Him as the spiritual master, so. . . Teacher. . . The teacher has the right to chastise the student. That is accepted. So He immediately chastised him, Arjuna. Arjuna was chastised. What is that? Aśocyān anvaśocas tvaṁ prajñā-vādāṁś ca bhāṣase (BG 2.11): "My dear Arjuna, you are talking just like a very learned man, but you are lamenting on the subject matter on which no learned man laments. That means you are a fool." It is indirectly said. "No learned man laments on this subject." What was the subject? He was considering that "If I kill the other side, my brother or my nephew or my teacher, they will die." So that is the general impression in the whole world. Then He teaches, "No. On account of death of the body, the soul does not die. The soul simply changes another body. That's all." This is the first instruction. Tathā dehāntara-prāptir dhīras tatra na muhyati (BG 2.13).
For that reason you cannot kill. It is not that Kṛṣṇa was encouraging killing. No. Duty. When there is fight, there is killing. You cannot avoid it. Just like the soldier. What is the duty of the soldier? Kill as many as possible the enemies. But the same soldier, if he comes back home and kills some of his men or countrymen and he is arrested, and in the court he is ordered to be hanged, and if he pleads that "I am a soldier. In the battlefield I have killed so many persons, and now I have killed one man. Why you are ordering me to be hanged?" what will be the answer of the court? The answer: that "You cannot kill on principle. But you can kill on the superior order. You cannot kill by your whims." In the battlefield the commander-in-chief orders, "Yes, you kill and get gold medal." But if you think the, "I have killed so many person in the battlefield. Here is my enemy. I kill him," no, that you cannot do. That you cannot do. This is the principle. When there is duty, that is another thing. But not whimsically. We cannot kill. Therefore Lord Jesus Christ ordered, "Thou shall not kill." This is the order. "Thou shall not kill." But we are violating the order. We are killing so many animals. So this is not good. On the plea that "Lord Christ sometimes took some fish somewhere; therefore we will have to maintain a big slaughterhouse," this is not very good logic.
So anyway, we have to act according to the superior order. And so far the spirit soul is concerned, that is the first lesson of spiritual knowledge. Unless you understand what is spirit. . . We are present here. The body is there and the spirit is there. Now we must analyze according to the direction given in authoritative books. That is very easy. Kṛṣṇa says that within this body there is the spirit soul. And we can experience that unless the spirit soul is there, the body does not change, and as soon as the spirit soul goes away, the body is a dead lump of matter, that's all. Very easy to understand. So we have to first understand this, then spiritual progress. If we remain like asses and dogs and cats, that "I am this body," there is no question of spiritual understanding.
Therefore we are presenting Bhagavad-gītā As It Is. Read it, and you will understand what is the difference between spirit and matter. In so many ways they have been described. Then if we understand that "I am not this body. I am spirit soul," then my duty will be assigned, that "I am spirit soul, ahaṁ brahmāsmi. So I am acting for the body only? The body is perishable." Antavanta ime dehāḥ. Everything is there. Antavat means perishable. Nityasyoktāḥ śarīriṇaḥ: "But the spirit soul is eternal." So I am working day and night so hard only for this body, how to eat, how to dress, how to have sex, how to defend. And what I am doing for the spirit soul? That is knowledge. The spirit soul. . . I am the spirit soul, and because as spirit soul I am within this body, the body is working, moving, and I am simply taking care of the body. What care I am taking for myself, the spirit soul, who is going to change this body?
Now, Kṛṣṇa says, tathā dehāntara-prāptiḥ (BG 2.13). The spirit soul will change this body, as it has already changed from babyhood to childhood, childhood to boyhood. That I already explained. So what type of body I am going to accept next life? I am not going to die; I am simply changing body. Just like we change dress. If one dress is torn or old, we change another dress. Exactly like that. This body we change when it is no more usable. We have got our spiritual body. And they say the spirit is formless. No. Now if this body is my dress, then how the body has got these hands and legs? Just like because you have got actually hands and legs, therefore your coat and pant has got hands and legs. If you have no form, then how the coat and pant is made? The coat. . . The pant has got legs because actually I have got leg. The coat has hands or body because actually I have got body. So the argument that the spirit is formless, that is bogus. Unless I have got form, how the dress body is made with hands and legs and heads and everything?
So these are the subject matters to be considered. That is called brahma-jijñāsā, to understand about his spiritual life, spiritual knowledge. Then there will be question, "How the spirit soul—I am—I have contacted this material body?" And it is said in the Bhagavad-gītā that because I have accepted this material body, all miserable conditions are there. We are trying to get over miseries. That is called struggle for existence. Everyone is trying. He thinks, "One status of life is miserable. Let me avoid it and get better life." That is our struggle. In this way, from lower bodies we have come to this spiritual. . . I mean to say, human form of body. Now it has to be decided what is our next body. Next body. That is answered in the Bhagavad-gītā. You'll find:
- yānti deva vratā-devān
- pitṛn yānti pitṛ-vratāḥ
- bhūtāni yānti bhūtejyā
- mad-yājino 'pi yānti mām
- (BG 9.25)
If you want to go to the higher planetary system where the demigods live, you can go there. Therefore the karmīs, by performing Vedic ritualistic ceremonies, they want elevation to the higher planetary system where the life, prolongation of life is very, very big. As we have got day and night, in the higher planetary system the waxing and waning moon, then when the moon is present there and the sky is in light, that is the day of the higher planetary system. And when the moon is dark, that is the night. That means our fifteen days—in the higher planetary system, twelve hours. Just imagine their year. And such ten thousands of years you can live if you can go to the moon planet. The day and night, fifteen days, your fifteen days is equal to their one day. No, twelve hours. That means your one month is their one day. Now calculate one day; then thirty days, one month; then twelve months equal to one year. Such ten thousands of years, just imagine. You can go there and live like that, yānti deva-vratā devān (BG 9.25), if you like. But that is not eternal life. After that long period, you have to die. So Kṛṣṇa says, janma-mṛtyu-jarā-vyādhi-duḥkha-doṣānudarśanam (BG 13.9). You are trying to avoid all kinds of miserable condition, but your real miserable condition is your birth, death, old age and disease. Try to avoid it. That is perfection. That is spiritual life.