My ancestral grave is about 20 meters above my head, forming an inverted "convex" character. Does it affect future generations?

Surrounded by overhead, of course, feng shui has changed, and man-made changes have naturally destroyed the coordination between the yin house and the natural pattern. Especially in this form, it shows that your ancestral grave is abrupt and empty. Will the foundation of future generations be solid? I won't say the terminology. Let's describe it in vernacular. A solid foundation should be like sitting in a plush chair with a backrest at the back and armrests at the left and right. Now that the handrail is gone, the front is still empty, just like a person sitting on a windowsill with his feet sticking out of the window.

Two remedies:

1. Move the grave to find the dragon. The geomantic omen of your ancestral grave should have been good, but no one can predict that the surrounding atmosphere will not be disturbed in a few years, especially now. In a few years, maybe the land around your ancestral grave will be used to do something, and moving the grave is the most thorough and safest.

2. Limited financial resources, you can plant a row of pine or cypress trees around the ancestral grave. Must be in a straight line, even number. Is to install handrails for the "plush chair". In the future, we will gradually try to fill the overhead places in some way.