We are conditioned in every step by the laws of material nature. Still, foolishly, we are thinking we are free. This is foolishness. We are so much controlled by the material nature, exactly like a small child is pulled by the ear by his mother. "Come here." He comes here. "Go there," and goes. Just like a dog. A dog may feel very freedom, jumping. But as soon as the master says "Come here," he comes and immediately chained. This is our position. So that is our position, that we are completely under the clutches of material nature, and according to the modes of material nature, we are acting and changing our body in different species of life. So our real business in this human form of life is to get, try to accept the process by which we can get free from this conditioned life.
Lecture on Bhagavad-gita 2.13, Hamburg, September 10, 1969