According to the Book of Changes, the so-called "burning double" usually refers to the work of burning humanoid paper with evil spirits at birth to complete the replacement and turn the corner.
Most people in the family are judged by the so-called master that there will be a disaster, so we should tie a paper man according to external factors such as the man's height. After the paper man is tied, he will stick three hairs on his head and write down the name and birthday of the person he wants to replace on the paper man. People believe that after burning paper men, real people will be fine.
Solemnly declare: the answer is for reference only, please don't be blindly superstitious.