What is the "inverted staff" in Feng Shui?

The so-called inverted staff refers to the method used by Mr. Feng Shui to determine the depth of the coffin.

Yu said in the "Tianbao Jing Burial Method 1": "If the Yin and Yang Road can be clear, the inverted staff can be completed with one staff, that is, knowing the depth of the benchmark, and knowing that the backup will be greeted before, it will be a blessing if it is wrongly tested, and it will be abolished if it is backward." Taking the staff as the benchmark, the method of reversing the staff is to erect a post at the third place of the water behind the hole and a post at the third place of the unprecedented water. Taking the rope as the standard, the depth, left and right, front and back of the hole are determined according to the low urgency of Long Mai. "The General Theory of Burying the Wings and Inverting the Staff" says: "Each has its own natural tendency and is suitable for its own environment. If you don't violate the law, those who know their anger, because of their anger, follow nature. "

There are twelve kinds of feng shui sticks, namely, straight sticks, reverse sticks, shrinking sticks, sticking sticks, piercing sticks, leaving sticks, without sticks, aligning sticks, opening sticks, cutting sticks, crossing sticks and committing sticks. The top ten are auspicious laws, and the last two are fierce laws. Yang Junsong's Twelve-staff Method and Miao Xiyong's Twelve-staff of the Tibetan Scripture Building both have graph theory and are described in detail.