The ancestral grave is passive and I don't know where it is. How to make up for it?

Generally, problems like this are caused by the fact that the older generation may not have the opportunity to hand over the ancestral graves to the next generation, leaving eternal regrets. Some people who find the older generation alive at the same age have also saved many regrets. If you really can't find it, you can only make a tomb owner out of mahogany, write your name, drop a drop of blood from your thumb on the' re, and bury it in a treasure trove of geomantic omen chosen in advance. Buy two or three more 12 kinds of tonic (which are available in Chinese medicine shops in rural areas, and some are ready-wrapped, which is not difficult), and the Tibetan wood brand is buried together with the tonic. The specific time, according to the descendants' genus, find the local feng shui master for guidance.