What is fortune-telling double _ What does fortune-telling double mean?

Is there body double in Begging for Life? What is the body, body double?

The hit volume is doubled, but some fortune tellers are mystifying for money. They just think that those who hit the sun column and commit crimes against the stars, or who tend to die in the air with owls, are all unlucky, like someone and you. So it's called body double. Double health is not a good thing.

For reference only.