Lao Liang: When robbing a tomb, why do you put candles in the southeast corner and withdraw when the lights go out?

First, the candle goes out, indicating that oxygen has been exhausted or will be exhausted; Second, the southeast is the Xun side, close to the gate (according to Feng Shui, it is better to open the gate on the Xun side). Third, the city gates are mostly opened in the southeast and southwest, and the tomb gates are generally opened in the south or south. Even if the candle goes out, you can judge the general direction of the tomb door.