A Russian fiction writer is now contributing suggestions to the rest of the world that scientific progress can help man to live forever. Of course, he does not believe in a Supreme Being who is the creator. Yet we welcome his suggestion because we know that actual progress in scientific knowledge will certainly take men to the spiritual sky and inform the scientist that there is a supreme creator who has full potencies beyond all materialistic scientific conceptions.
As mentioned, every living being is eternal in form, but he has to change his outer coverings, gross and subtle, and this changing process is technically known as life and death. As long as a living being has to put on the shackles of material bondage, there is no relief from this changing process, which continues even in the highest stage of material life. The Russian fiction writer may speculate, as fiction writers are apt to do, but saner people with some knowledge of natural law will not agree that man can life forever within this material world.
A naturalist can see the general course of material nature simply by studying a piece of fruit. A small fruit develops from a flower, grows, stays for some time on a branch, becomes full-grown, ripens, then begins to dwindle daily until it finally falls from the tree and commences to decompose into the earth and at last mingles with the earth, leaving behind its seed which in its turn grows to become a tree and produces many fruits in time, which will all meet the same fate, and so on and so on.
Similarly, a living being (as a spiritual spark, a part of the Supreme Being) takes its organic form in the womb of a mother just after sexual intercourse. It grows little by little within the womb, is born, then continues growing, becomes a child, boy, youth, adult, old man, then finally dwindles and meets death, despite all the good wishes and hopeful pipe dreams of fiction writers. By comparison, there is no difference between man and the fruit. Like the fruit, the man may leave behind him his seeds of numerous children, but he cannot exist eternally within his material body due to the law of material nature.