Why can Mr. Feng Shui see who is buried in other graves?

This is not complicated for people in the industry. There are many methods of textual research, one is based on the teacher's teaching, and the other is based on long-term experience in geomantic omen of yin houses, such as new and old graves, vegetation growth, tomb rules and so on. Even if there is no tombstone, it can be big enough to decide the year of burial. Men and women in the tomb are not a problem. Interlacing is like a mountain, but the verification methods are dense and not obvious. The obvious is worthless, and you won't feel mysterious.