To understand that, "I am this body," this is foolishness. I am not this body. I am the soul within this body. That is explained in the Bhagavad-gītā in the Second Chapter: dehino 'smin yathā dehe (BG 2.13). Dehī, the proprietor of the body. Just like you are the proprietor of your shirt and coat. You are not shirt and coat; you are the proprietor of the shirt and coat. You are dressed with shirt and coat in different colors and different shape. Similarly, the living entity—it does not matter whether he is a man or animal—he is part and parcel of God, but he desired certain dress or certain body, so prakṛti, nature, has given him. So this is going on. Puruṣaḥ prakṛti-stho hi (BG 13.22).
Puruṣa means . . . he is not enjoyer, but he is thinking enjoyer. He is not enjoyer. At any moment his so-called enjoyment will be finished. Just like in the Western world they are thinking that "We are enjoying life." Of course, enjoying life in his consideration. But how long, sir, you will enjoy this life? You have got very nice car or very nice building, and you are enjoying as Australian, as American. That's all right. But how long you shall remain American and Australian? That question does not come to the dull brain, because he does not know that he is eternal. And this is temporary dress. I . . . somehow or other, I wanted this, and prakṛti, nature, has given me. But nature has not given me the right to remain as American, Australian, Indian. No. That is not possible. You wanted. You enjoyed this life for a certain time, and then again you create your desire. "Now I am very powerful, very happy. Let me love dog instead of God"—that means you are preparing your next life as dog, because it is stated in the Bhagavad-gītā that at the time of death the mentality which you have created throughout the whole life, that will carry you to other body, gross body. It is very scientific. Anta-kāle tu māṁ smaran.
So if you train up . . . you have got this facility of life, comfortable life. Do not misuse it for becoming next life a dog. Utilize it to become next life God. That is success. You have got advanced intelligence, but this intelligence is given to you for understanding God and your position that by forgetting God you are in this material world, and in this material world you are changing one body to another—sometimes American body, sometimes demigod's body, sometimes celestial body, sometimes dog's body, cat's body, tiger's body. This science is unknown.