The sudden downpour had just stopped when Lady Lu, Zhang Wenwan, took Lu Weiwei back to the city from Waguansi. They also bought all the lamb kidneys, desert broomrape, and other ingredients prescribed in Chen Caozhi's dietary remedy, and stewed them that evening for Lu Na to eat. Lu Na had been a vegetarian for fifteen years; the smell of the medicinal lamb soup alone made him want to vomit. With tears in her eyes, Zhang Wenwan begged her husband to make an effort to eat it, saying that this was a secret prescription of Immortal Elder Ge's. Whatever happened, they had to try it, and he had to keep taking it for six months-
Lu Na knew of the sorrow in his wife's heart, but he believed their inability to have children was due to her frail health. Now they were making him eat this medicinal soup-how utterly unreasonable! Still, unable to bear going against his wife's wishes, he forced down the entire bowl. Having eaten too much, he went to his study to practice calligraphy and clear his mind. Zhang Wenwan naturally accompanied him, only to find their daughter Lu Weiwei and several maids busily rummaging through paintings and calligraphy. Asked what they were looking for, she answered that they wanted the portraits of her two great-uncles.
Lu Na asked in surprise, "Weiwei, you aren't skilled at figure painting. What do you want those portraits for?"
Zhang Wenwan answered for Lu Weiwei, "They say those two portraits were painted by Cao Buxing. I've long wanted to admire them myself."
Cao Buxing was a renowned painter of Eastern Wu, skilled at painting dragons and portraits. Later generations ranked him alongside Gu Kaizhi, Zhang Sengyou, and Lu Tanwei as the Four Great Masters of the Six Dynasties. Xie He of