Every one is eager to live longer in the earthliness. If he can live in the world at 99 years, he must want to live to one hundred years and even more. People can not be satisfied forever even though people’s life has endings. According to Buddhism’s religious doctrine, people in the earthliness have a circle of death and birth. When you are dying, you are going to birth; and when you are born, your life is heading for death, which has a little reason. When you are spending every day in your life and the days of your life have limitations, you are moving toward the day of death. The Buddhism’s religious doctrine is used to help the lower classes in feudal society and gives hope for them. But in today’s society, people live in a rich and good life, which is different from that in feudal society. Hence people are eager to live longer to enjoy new things in the world.