Is the gate of 1.3m on Luban geomantic ruler fierce or auspicious?

Is the gate of 1.3m on Luban geomantic ruler fierce or auspicious? The answer is: good size math. Mathematically, 13 is a prime number, which has the meaning of integrity, dignity and uncompromising. From the opening sound analysis, mountains and clothes are auspicious and beautiful images. According to the traditional custom analysis of the folk custom "Huangli", 13 means to get ready and settle down early before the lunar taboo. From the perspective of divination theory, 13 can be classified as divination, which means that the sky and fire are the same person, the sun shines high and the whole world celebrates.