What is the significance of the case of Dragon Tiger Beidou in Puyang, Henan Province?

In many ancient tombs in China, there are dragon and tiger designs, the most representative of which is the dragon and tiger made of shells in Puyang, Henan. This shows that the tomb owner was very keen on Taoist health preservation before his death and had a thorough understanding of Taoist health preservation knowledge. Dragon and Tiger means to bring down the dragon and tiger, Beidou means to practice time, and the Taoist boy's leg bone is placed in the position of bucket handle. It shows that this Taoist boy is in charge of the tomb owner's schedule. Because the ancients used the Big Dipper to judge the timing of the night. There is a passage that fits the format of this tomb very well and can fully explain the meaning of this tomb format. The Taoist scripture says: move the Beidou south, and the cars of Shenhe Canal will never stop. The driver of the river is sleeping and will pick up the cat tomorrow. The dragon, white tiger and big dipper in this tomb are meant to show that the owner of the tomb is not dead. It's just practice and sleep. It can also be understood that the soul of the tomb owner is practicing, and people can practice to become immortals after death. It's called ghost fairy. If you pay attention to the Journey to the West, the Buddha said that there are five kinds of immortals: immortal, immortal, immortal and ghost immortal.