I change from this gross body lying on bed in a very nice apartment, skyscraper building, but I have gone to the forest, and I am affronting a big tiger and I'm crying. In this bed I am crying. The friends say: "Why you are crying?" "Tiger, tiger, tiger." Where is tiger? This is called subtle body. So you are changing daily at night from this gross body to the subtle body. And again, the dream is over, from the subtle body, again gross body. This, every one of us has got this experience.
Therefore I am the enjoyer, puruṣa. I am changing simply body, this way or that way. This is my position. So one who is intelligent, that "I change body and different bodies. I am eternal, so what is my eternal business?" this is athāto brahma jijñāsā. This is called inquiry of the spiritual life. This is very simple thing, that "I am simply changing body. Then what is my real position?" This is intelligent. When a man comes to this position or this platform, to inquire, "Actually what I am?" that is beginning of human life. Otherwise, it is animal life. The animal also thinks, "I am dog," "I am tiger," "I am king," or similarly, if I think, "I am Mr. Such-and-such," "I am president," "I am this or that," you are none of these, sir. These are all designation, for the temporary, for a certain period, ten years, five years, fifty years, utmost hundred years, then finished. But you are eternal.