People suffer because they pursue the wrong things: since it is said in the Buddhist scriptures, that is to say, your desire is the root of your pain. Where there is desire, there is what you want to pursue, and what you want is pain, and there is no end to desire. Now that you get what you want, you will want something else. What the Buddha means is that you will want nothing.

Is there absolute right and wrong in this world? : Yes, 1+ 1=? There are right answers and wrong answers.

How to understand the wrong things: the mistakes in the Buddha are something you have to realize slowly. The right or wrong of life is a question worth thinking about. Everyone's life is different in right and wrong, so you have to understand it yourself.