You also want bodhicitta. It is the heart of becoming a Buddha for all beings to get rid of suffering. The heart of liberation is to make all beings become buddhas. Such merits are boundless. I can really send such a firm heart without affectation or hypocrisy. Your uncle is sure to get better.
If you can't send such a heart. We should also make it a goal. Then try to recite the Buddha's name for him. There is no amitabha in the south. Read with your mouth, listen with your ears, and think about these words in your heart. Don't think about other things. And give it back to him. After reading it, I said, "I want to return this merit to my uncle and make him better." At the same time, it is also good to return to all sentient beings bodhi, and the ten buddhas and bodhisattvas are all like this to me.
But I'm afraid your heart is unclean, and your confidence in the Buddha will not be strong for a while, you can't concentrate, and you won't have confidence and perseverance for a long time. You can also watch the King Kong Prajna Paramita Sutra, referred to as the Diamond Sutra. The merits of this sutra are boundless. I read this scripture every day. You don't have to say the prayers in front and the spells in the back. Is to read the text. Then stick to it every day, several times or more. Don't be paranoid when reading, and don't be mixed with gossip. Give it back to him after reading it, same as above. Once upon a time, there was a monk. There was a man near his neighborhood who calculated his life accurately. His life span is only eighteen years old, and he is extremely afraid, so he is eager to hold the scriptures for a long life. After praying in front of the Buddha, he picked up a book, the Diamond Sutra. Later, he lived a long life and became a famous monk, Dade.
Of course, it is best for him to believe in Buddhism himself. You can read the Amitabha Sutra, which is a way to promote the western paradise. At least if he can have the confidence to study hard, at least he can go to heaven. That's good. If a person can call Amitabha ten times on his deathbed, he will definitely come and personally lead all beings to the Elysium. When you get there, you can get rid of reincarnation forever. Very simple and easy. If he can recite Buddha by himself, it is naturally the best. This is the case with many people, who soon began to contact and learn Buddhism, but later recovered. A man I used to know was like this. He died of breast cancer. Later, he believed and converted to Buddhism, but he recovered and is now very devout. So it would be great if he could believe in Buddhism himself.
You should visit the Buddhist website. There are many related materials and introductions there.
People's will is very great. If you really want to shorten your life span and let him live longer, it is good for him to strengthen this confidence and show your heart to Buddha and Bodhisattva. But you really want to help him. In order to be safer, you should do the above.