Why didn't The Untamed put the little stardust in the grave, but just put it in the coffin?

Chen Xiaoxing, in The Untamed, like Wei Wuxian's mother, is a disciple who scattered the people in Tibet. At the age of seventeen, he was determined to save the world, join the WTO and become famous in World War I. He was good-natured, handsome and completely honest, and his friends never shirked anything, so he had a good reputation in the street. Lan Song, his good friend, called it "the moon, the breeze, the dust, the snow, the frost and the song Chen Zi".

When I was a child, I was teased by the master of the Chang family, and my little finger was interrupted, vowing to kill the Chang family, which led to the capture of Yang Xue in three provinces of Chen Xiaoxing and a grudge. So he slaughtered Bai and poisoned his eyes. Later, Chen Xiaoxing turned to Lan Song and left. Later, Yang Xue was punished, seriously injured and left in the grass beside Yicheng. Unexpectedly, he was Chen Xiaoxing unusually sensitive sense of smell smelled blood, and then was cured.

Later, Yang Xue lived incognito and settled in Yicheng Yizhuang with Chen Xiaoxing and A Qing, leading a stable life. Chen Xiaoxing puts a candy on his and A Qing's pillows every day. As time went on, Yang Xue and Chen Xing got along well, and they would draw lots to buy food and peel rabbits and apples.

Two years later, Chen Xiaoxing knew that Yang Xue had set himself up to kill the villagers and his best friend by mistake while hunting at night, and then he hanged himself. Yang Xue was heartbroken, slaughtered this just city, turned all the villagers into Prometheans, imprisoned a skeleton and a wisp of Chen Xiaoxing's ghost, and persistently searched for ways to gather souls.

However, he put Chen Xiaoxing's body in the coffin. First of all, because he and Chen Xiaoxing have lived together for many years, they have developed feelings. They don't bury him, they just hope to be with him one day and treat him as if he were not dead but asleep. Twenty, because he only has some residual consciousness, even if he can repair all consciousness, he still needs his body to be well preserved before Stardust can be resurrected.