What does it mean when a friend is told by fortune that two are not enough monks?

Fortune-telling is a lie, but some people make a living by fortune-telling, and some newcomers are willing to fortune-tell, so they are helpless. I have read the book "How many catties and ounces are used for fortune telling". According to the combination of the year, month and day, the corresponding weight unit values are obtained, that is, six catties and two lives, nine catties and nine lives. The corresponding interpretation language once puzzled the whole country. There are many evolved charlatans who make good use of this trick, which is nothing more than making the rich afraid of giving money to eliminate disasters and making the poor want to give money. Don't believe it.