We can understand with little thinking that in this body I am..., even in this life. At night I get another body. I dream. I dream there is tiger. I go to the forest, and there is a tiger, and it is coming to kill me. Then I am crying, and actually I am crying. Or, in other way, I have gone to some beloved, man and woman. We are embracing, but the bodily action is going on. Otherwise why I am crying? And why there is discharge of semina? So people do not know that I am leaving this gross body, but I am entering into subtle body. Subtle body is there, not question of inside. We are packed up. Just like this body is packed up with shirt and coat, so the coat is the gross body, and the shirt is the subtle body. So when this gross body is resting, the subtle body is working. The subtle body is there. The foolish men, they cannot understand that "I am compact in some body, either subtle body or gross body." One who is too sinful, very much sinful, he does not get the gross body. He remains in the subtle body, and that is called ghost. You have heard. Some of you might have seen. There is ghost. Ghost means he doesn't get. He is so sinful that he is condemned to remain in the subtle body. He does not get the gross body. Therefore, according to Vedic system, there is śrāddha ceremony. If the father or relative has not gotten the gross body, by that ceremony he is allowed to accept a gross body. That is the Vedic system.
So anyway, we can understand that "I am sometimes in this gross body, and I am sometimes in the subtle body. So I am there, either in the gross body or in the subtle body. So I am eternal. But when I work with the subtle body, I forget this gross body. And when I work with this gross body, I forget this subtle body. So either I accept the gross body or subtle body, I am eternal. I am eternal. Now the problem is how to avoid this gross body and subtle body. That is problem. That means when you remain in your original body, means spiritual body, and do not come to this gross or subtle body, that is your eternal life. That is... We have to achieve. This human life is a gift by the nature or by God. Now you realize that you are changing your different condition, distress and happiness, being forced to accept some kind of gross and subtle body. That is the cause of your pains and pleasure. And if you get out of this gross and subtle body, remain in your original, spiritual body, then you are free from these pains and pleasure. That is called mukti. Mukti. There is a Sanskrit word. Mukti means liberation, no more gross body, no more subtle body. But you remain in your own original spiritual body. This is called mukti. Mukti means... It is described in the Bhāgavatam, muktir hitvā anyathā rūpaṁ sva-rūpeṇa vyavasthitiḥ (SB 2.10.6). That is called mukti. Anyathā rūpam.