What do you mean by sleeping happily or sleeping with respect? What is the reason?

The Happiness of Cattle Sleeping: According to Jin Zhuan, Tao Kan's parents died, and the old cow at home was lying on Sleeping Mountain, indicating that this place is a treasure trove for burial. Later, people used allusions such as "Cow Sleeping", "Cow Sleeping", "Cow Sleeping" and "Cow Sleeping Place" to describe cemeteries where ancestors and descendants can live and prosper. Respect for Niu Mian is respect and respect for the deceased.