What is the emphasis on the diamond ceiling feng shui in the corridor?

Feng shui "likes circuitous, avoids going straight", the diamond shape is sharp, and the five behaviors are fire. When its four corners are aligned there, it will form a suffocating impulse. It is taboo to use this kind of figure in geomantic omen. Using a diamond ceiling at the top of the living room at home will cause many contradictions and quarrels at home, and will also suffer from cardiovascular and cerebrovascular diseases. So it is best not to use diamond ceiling.