And next, the time, or duration of existence of the whole universe, or this manifestation of the material nature, and the duration of time, or the eternal time, and karma. Karma means activity. Everything, the whole universe, whole cosmic manifestation is full of different activities. The living beings especially, they are all engaged in different activities. So we have to study from the Bhagavad-gītā, īśvara, what is God, jīva, what are these living entities, and prakṛti, what is this cosmic manifestation, and how it is controlled by time, and what are these activities?
Now out of these five subject matter, in the Bhagavad-gītā it establish that the Supreme Godhead or Kṛṣṇa or Brahman or Paramātmā... You may call whatever you like. But the supreme controller. There is a supreme controller. So the supreme controller is the greatest of all. And the living beings, they are in quality like the supreme controller. Just like the supreme controller, the Lord, He has control over the universal affairs, over the material nature, how the... It will be explained in the later chapters of Bhagavad-gītā that this material nature is not independent. She is acting under the direction of the Supreme Lord. Mayādhyakṣeṇa prakṛtiḥ sūyate sa-carācaram (BG 9.10). "This material nature is working under My direction," mayādhyakṣeṇa, "under My superintendence." So we, we are mistaken. When we see wonderful things happening in the cosmic nature, we should know that behind these wonderful manifestations, there is a controller. Nothing can be manifested without being controlled. It is childish to, not to consider about the controller. Just like a very nice motor car with very good speed and very good engineering arrangement is running on the street. A child may think that "How this motor car is running without the help of any horse or any pulling agent?" But a sane man or an elderly person, he knows that in spite of all engineering arrangements in the motor car, without the driver it cannot move. That engineering arrangement of a motor car, or in electric powerhouse...