A true practitioner will keep himself from being greedy, angry, ignorant and arrogant toward others and his environment. If one has any of the elements just mentioned, then he is neither sincere nor proper. Sincerity and proper thoughts and viewpoints are the basis for training the mind. A person with a pure mind and body will not become ill. We suffer from illnesses because our minds are filled with wandering thoughts and worries that are derived from greed, anger, ignorance and arrogance.
As mentioned earlier, sincerity and proper thoughts and viewpoints are the basis for purifying one's mind. A purified mind leads to a purified body and naturally, a person will become immune from illness; thus, a realized practitioner would never get seriously ill. Moreover, if a person is determined to follow the path of Buddha, he or she will not die in the conventional manner. A conventional death means a person does not know exactly when they will leave this world, nor where they will go afterwards. On the other hand, true practitioners with confidence in themselves and in Amitabha Buddha, who cultivate in accordance with Buddhist teachings, will be capable of controlling both the time of leaving this world and of being born in the Western Pure Land. This is neither unusual nor a fairy tale, but the simple truth, and can be achieved by cultivating the pure mind and vowing to reach the Western Pure Land. Therefore, one needs to understand how important it is to be free of worries and attachments.