In White Deer Plain, there were different versions and explanations about whether Tian Xiao'e possessed Lu San after her death. In the novel, the plot of Tian Xiao'e possessing Lu San after her death was true, but whether Lu San could really defeat the ghost Tian Xiao'e needed to be analyzed in detail. In some versions of the novel, Tian Xiao'e's soul did not possess Lu San's body. Instead, Lu San used Tian Xiao'e's strength and body to fight against evil forces. In other versions of the novel, Tian Xiao'e's soul possessed Lu San and Lu San improved his combat ability by interacting with Tian Xiao'e's soul. In this case, whether Lu San could really defeat the ghost Tian Xiao'e would depend on the plot and character settings of the novel. In short, there were different versions and explanations of the plot in White Deer Plain about Tian Xiao'e possessing Lu San after her death. The specific situation needed to be analyzed according to the plot and character setting of the novel.