Earth, water, fire, air, ether, mind, intelligence, ego , all these are from Me O Arjun. These elements are divided in to 8 forms and all belong to me.There is a vivid description of science and scientific process which is related to Brahma's creation of our earth.

Bhagwan says he is going to tell Arjun about this science. After understanding about the science and wisdom and knowledge , Arjun will not have an y doubt in his mind. He does not have to know anything else. Krishna also says millions of people take birth in earth. Very few are famous in various fields like there are sports people, there are actors, poets, writers, scientists, philosophers and yogis. Among the yogis very few will come forward to attain me.

From this episode Gyan Vigyan yog started. In this shloka Shri Krishna says to Arjun how to understand the krishna tatwa fully accepting and surrendering on to the supreme.It is very much essential to clear the basic understanding in science.

Krishna says , Arjun be a yogi. And surrender your mind to me. I will never misguide you. Keep me always in ypour heart.

It might happen that the soul takes birth in a very much cultured and knowledgable family who have full of wisdom who practice dhyana and sadhana. The soul might learn vedas when he or she is in the womb of the mother. But this will be very rare.

Shri Krishna says a yogi "s sadhana never goes in vain. It is not wasted even if he would not attend liberation. The soul enjoys heavenly abode for some time and again comes back to earth in a more finished and superior soul.

In the following conversation , Arjun asks Shri Krishna that if a yogi , after practising yoga and meditation , ultimately feels that it is not his way and he has taken a wrong decision and wants quit from sadhana then what will happen to him or her?

And also if a yogi dies before self realization then will his sadhana waste?

Arjun expresses his dilemma to Krishna. He says that it is very difficult to control the mind. Mind is always restless and its not in one"s hand to control. Arjun compares the mind to the wind .