Why are Jiuding Xuanmen two dharma veins?

The reason why Jiuding Xuanmen is two dharma veins may be:

Jiuding Xuanmen law pulse mainly refers to the nihilistic and orthodox law pulse of Taishang Huangdao, and its history can be traced back to the Han Dynasty. This method inherits the classics such as Tao Te Ching, Book of Changes and Book of Songs, and emphasizes self-cultivation, cultivation of qi, cultivation of truth and cultivation of yin and yang.

The inheritance way of Jiuding Xuanmen method is mentoring, and mentoring exchanges and learns from each other, constantly practicing and inheriting.

In a word, the inheritance of Jiuding Xuanmen's dharma vein is mentoring system, and its history can be traced back to the Han Dynasty, emphasizing self-cultivation, refining qi and cultivating truth, and cultivating both yin and yang.