So if you want to become immortal, then you must practice this. Of course, in Western countries, it is very difficult. They say, "It is impossible." Big, big men, they say, "It is impossible." Yes, it is impossible. Therefore śāstra has given concession that you require sex life, but enjoy it in married life, but no illicit sex. At least, stop this. If you want to be immortal, these things are to be followed: no illicit sex, no intoxication, no meat-eating, no gambling. Then you can think of immortality, gradually. That is called tapasya. Tapasā brahmacaryeṇa. Every śāstra, you'll find. At least at the end of life one should be completely free from these bad habits. That is called sannyāsa. Don't cheat, accept sannyāsa and indulge in these things. Don't be cheater. That is very bad. Sannyāsa means to take vow. In other station of life, there may be we fall down. But sannyāsa means no, no falldown. Therefore we have now taken very seriously. Unless one is found completely competent to accept sannyāsa, there is no more use of awarding sannyāsa. So this is the process. Tapasā brahmacaryeṇa (SB 6.1.13). Brahmacarya is very, very essential. And that is, when one becomes detestful to sex life, that is the beginning of spiritual life. That is the beginning of spiritual life.
So immortality is not very difficult thing. Simply one has to adopt the method, process, as recommended in the śāstra, and then you can become immortal. Kṛṣṇa says, janma karma ca me divyaṁ yo jānāti tattvataḥ, tyaktā dehaṁ punar janma naiti. . . (BG 4.9). Punar janma naiti—this is immortality. The Kṛṣṇa says, punar janma na: "No more punar janma." And if you have no punar janma, there is no punar death, punar vyadhaka, or punar disease. Punar means "again." So if you can stop your punar janma—no more taking birth—that is perfection of life. Therefore it is recommended that the guardians, namely the guru, spiritual master, the father, the mother, the king, or the government. . . The whole system should be so centralized that people may be saved from this process of punar janma. That is real government, real parenthood, real guru-ism—how to save the disciples or the citizens or the son, subordinate. They come to your shelter. Just like these children have come to the shelter of father and mother, the disciples have come to the shelter of guru, the citizens are expecting good government. So they are subordinate, expecting protection from the superior. Therefore the whole scheme should be how to protect them from repetition of death. Na mocayed yaḥ samupeta-mṛtyum (SB 5.5.18). We are entangled by this process of birth, death, old age and disease, and it is the duty of the guru, duty of the father, duty of the mother, duty of the government how to save them from this process of birth, death, old and di. . . That is civilization. Otherwise it is dog civilization. What is the meaning? This is civilization.