Feng Shui believes that the front of the cemetery is suitable for water, and the back of the ancestral hall is suitable for mountains. This layout is considered to be prosperous for future generations, and it will also bring protection to ancestors and religious beliefs. So if the tomb is built behind the ancestral hall, it may destroy this feng shui pattern, thus affecting the family's wealth and the development of future generations.
However, in some cases, repairing graves behind ancestral temples may not have negative effects. For example, if the ancestral hall and the tomb are in different places, even in the same place, but the distance between them is far away, then this layout may not necessarily affect the family's fortune.
Therefore, whether the tomb can be built behind the ancestral temple depends on the specific situation. If you have faith in Feng Shui, it is recommended to consult a professional Feng Shui master to determine the best layout plan.