Sima Guang, a writer of the Northern Song Dynasty in China, once wrote an ancient grave-robbing poem. What is the full text of this poem?

Sima Guang's Poems on Ancient Graves said: "The vast wilderness is flat and beautiful, and the ancient grave is like a mansion. There are no words on the tablet, thorns are deep, and stone beasts sink pines and cypresses. Although the questioners don't know their names, they used to be senior officials. Where do the children and grandchildren live? In those days, good or bad luck was inevitable. I came from the Cold Food Festival and didn't cry for a burnt offering. "