So in God's creation everything is unlimited. It is not limited with our perspective of knowledge. So there are so many, innumerable universes, innumerable planets, and there are innumerable living entities. And all of them are rotating according to their karma. And birth and death means changing, one body to another. I make one plan in this life and... Because everyone is in the bodily concept of live. So so long we are in the bodily concept of life... "I am brāhmaṇa," "I am kṣatriya," "I am vaiśya," "I am śūdra," "I am Indian," "I am American," "I am so and so." These are all bodily concept of life designations. So so long I am in bodily concept of life, I think, "I have got this duty to do. As brāhmaṇa, I have got to do such and such things." "As American, I have got to do so many things." So long this consciousness will continue, we'll have to accept another body. This is the nature's process. So long...
Therefore we make some plan in this life, and my, this material body, this gross body is finished, that is dead, but my idea, in the subtle body, in the mind, it remains. And because it remains in my mind, therefore to fulfill my desire I have to accept another body. This is the law of transmigration of the soul. The soul is, thus, with his plan, he is transferred into another gross body. And along with the soul, there is Supersoul, Supreme Personality of Godhead.