Since termites dug the big tree growing on the grave, there must be termites in the grave. If termites pierce bones, they are like a big killer! I suggest you find someone nearby to open a grave as soon as possible. If termites really enter the coffin (or Jintan), they should immediately take out the bones, choose a clean place to build a shack, put the book "Lei Gong Dian Mu" in Jintan as a guard, and then ask people to find a treasure house and bury it another day.
Of course, if there are no termites in the coffin, there is no need to move the grave.