In Journey to the West, Pig Bajie and Friar Sand still remember their previous lives. Why don't Tang Priest remember?

Because Pig Bajie and Friar Sand are immortals, they just came into the world, naturally remembering their previous lives, while Tang Priest is constantly reincarnated, and the memory between reincarnation and previous lives is disconnected, so they don't remember their previous lives. Besides, Friar Sand is not reborn at all. Be demoted to the norm after breaking the dogma. Fortunately, he remained the same as before, with little change, but his dress was different. He is still him, his memory and magic exist in his body and brain, but Pig Bajie has become a pig slightly unfortunately.

When Pig Bajie introduced himself to Guanyin, he said that he was reborn. There is a possession here, which means that he took possession of someone else's body, but it happened that he was thrown into the uterus of a sow and eventually became a pig, so he became a pig.

In many folklore and novels, reincarnation will lose memory. No matter what my last life was, I didn't remember who I was and how much magic I had in my next life. This is also the setting for the reincarnation of Tang Priest. Although he was a second disciple of the Buddha last time, he did not follow Buddhism, so he was sent to earth by the Tathagata.

There are 10 samsaras, and each samsara is a monk who has to go through hardships. The first nine samsaras were all eaten by sand monks in Liusha River. Until the 10 Guanyin transformation, under the protection of the Monkey King and Pig Bajie, Friar Sand was finally subdued and not eaten by him. This time, the Buddhist scriptures were successfully completed. Therefore, every reincarnation of Tang's monk is a blank person, and he doesn't remember what he experienced before.