Buddhism's "walking on earth": not glory, but a cold curse seal. The chosen ones will be completely cleansed of their worldly memories and become perfect tools for promoting Buddhism. The deeper their emotions, the more thorough the cleansing, proving that "Buddha's Dharma is boundless and emotions are cut off."
The Jade Emperor's "Chess Game": God Haotian has long been deeply dissatisfied with the rapid expansion of Buddhism's power through the "Journey to the West". He has insight into the past life relationship between Sha Seng and the princess, which is why he chose Sha Seng - a chess piece who has a deep hatred for Lingshan and is strong-willed enough to carry his plan.
Jin Chanzi's "heresy": As the most intelligent disciple of the Tathagata, he questioned the dogma that "only by cutting off human relations can we save all sentient beings" and believed that true compassion should include human love. This "deviant" thought was the fundamental reason why he was demoted to the mortal world for ten lives.
Let us walk into this magnificent epic spanning three generations.