So here this very word is used, anasūyave. Arjuna is hearing from Lord Kṛṣṇa without any enviousness. He's accepting what does He say. This is the way of understanding. We cannot understand by our mental speculation what is God. We have to hear, and we have to accept. Otherwise there is no way to understand what is God. So God says that "Because you are not envious, therefore, I speak to you about the most confidential part of knowledge." Jñānaṁ vijñāna-sahitam. Vijñāna-sahitam means this knowledge is not theoretical, but it is scientific. Whatever knowledge we get from Bhagavad-gītā, we should not think that it is sentimentalism or fanaticism. No. They're all vijñānam, science. Jñānaṁ vijñāna-sahitaṁ yaj jñātvā: "If you become well versed in this confidential part of knowledge, then the result will be mokṣyase aśubhāt." Aśubhāt. Aśubha means inauspicious. Our stage of life, our existence in this material world, is aśubha, inauspicious, always miserable. Mokṣyase: "You shall be liberated from this miserable life of material existence if you understand this knowledge."
Bhagavad-gita As It Is Lectures
This is aśubha. The aśubha means it is not śubha. If his body would have been auspicious, then this body would continue to exist because we are eternal. These things have been described very vividly in the second chapter. Na hanyate hanyamāne śarīre (BG 2.20). Because we are dull brain... There is no education actually. The modern education means simply a craftsmanship. If you can prepare a nice motor car, oh, that is advancement of the... And what is this? This is craftsmanship. It is the blacksmith's work. It is not knowledge. Knowledge is different. Therefore it is called jñānaṁ vijñāna-sahitam. This is knowledge,"What I am? I am this body or something else? Why I am suffering? If there is any remedy? I do not wish to die, neither I am subjected to death." Nityaḥ śāśvato 'yaṁ na hanyate han... This is knowledge, that "If I am eternal, if I do not die after annihilation of this body, then why I am subjected to this body?" This is knowledge. And to manufacture a motor car, that is not knowledge. That is craftsmanship. Knowledge is here, that "I am eternal. Why I am put into this condition of temporary body, not only one kind of body, but there are 8,400,000 different forms of body, and I have to accept one of them, tathā dehāntara-prāptiḥ (BG 2.13), according to my karma. This is my position. How to get out of it, to inquire about it? If there is any science to accept it?" That is knowledge.
In the Fourth Chapter we have discussed that what sort of work we shall do? That is prescribed. Yajñārthe karmaṇo 'nyatra loko 'yaṁ karma-bandhanaḥ (BG 3.9). Karma-bandhanaḥ means you become bound up by the resultant reaction. But if you act for yajñārthe-yajñārthe means for Viṣṇu or Kṛṣṇa—then there will be no reaction, śubhāśubha. Śubha means good, and aśubha means bad. So reaction, either good reaction or bad reaction, you have to take this body. Suppose your... As a result of your good action, you are going to take your birth in the Rockefeller family of America. That's all right. But so far your body is concerned, the body itself is miserable. Don't think that because you are getting your body in some rich family, or in other higher planets, in the demigods planet where you can have a long duration of life... But still, you have got the material body. And as soon as you get this material body, the reaction of the material body—threefold miseries and the miseries of birth, the miseries of death, the miseries of old age, and the miseries of disease—will continue. Because you are rich man, so you are not immune from the material miseries.