What is the perfection of life? Perfection of life is no more birth, no more death, no more disease, no more old age. That is perfection. That the people do not know, that there is possibility of attaining a stage when there is no more birth, no more death, no more old age. There are so many universities, so many educational institution all over the world, but nowhere there is department of understanding this science, how to stop birth, death, old age and disease. In the chemical laboratory, they are trying to manufacture chemicals for stopping birth—contraceptive. But there is no medicine that after taking this medicine or these chemicals there will be no more death or no more birth, no more old age and no more disease. You can manufacture chemical or combination of medicine as counteracting the disease, just like in the Western countries the cancer disease. There are so many chemicals and medicines they are discovering, but there is no medicine, no chemical, which can say that no more cancer disease. That is not possible.
So actual siddhi means to overcome these four principles of miserable condition of life. That is perfection. That is stated in the Bhagavad-gītā: janma-mṛtyu-jarā-vyādhi-duḥkha-doṣānudarśanam (BG 13.9). Everything is being attempted to suppress our miserable condition of life. That is going on. All advancement of science, knowledge, philosophy, theology—anything—the idea is how to stop the miserable condition of life. But the real miserable condition of life, according to Bhagavad-gītā, is birth, death, old age and disease. Don't go, take seriously, the side—miserable condition. Just like people are very much anxious to feed the hungry, the hungry men. Well, that you can do. That is nice business. But why don't you try that . . . the hungry man and the welfare man both will die. You cannot stop death, either you feed him well or he is hungry. Death is there. "As sure as death."