If Goku had been accepted into the Buddhist Sect by Tathagata Buddha back then, none of these later events would have happened.
If they wanted to deal with Lord Lao, Uchiha Shin alone could have made Lord Lao fall from the Saint Realm.
But Zhenyuan Daxian was unwilling to do that. He brought Goku out, first to deal with Lord Lao's Saint Realm, and second to bring about a change in the Jade Emperor of the Heavenly Court.
He wanted Goku to draw upon the power of the Deva Path to kill the Jade Emperor, then have the Deva Path choose a new Jade Emperor.
Zhenyuan Daxian did this because he wanted everyone in the Three Realms to compete fairly. After all, among the great powers of the Three Realms, his influence was not the strongest, and he was often suppressed by the others.
If a Jade Emperor chosen by the Deva Path emerged, perhaps that shortcoming could be made up for. At the very least, the development of his Five Manor Temple would not suffer too severe a blow.
Uchiha Shin stood atop a distant cloud, his eyes gleaming as he watched Goku and Tathagata Buddha battle in the distance.
This battle was truly spectacular.
When he had read Journey to the West before, there had been no real battle between Goku and Tathagata Buddha. Tathagata had merely tricked Goku and suppressed him beneath Five Elements Mountain.
But now, all these battles were unfolding right before his eyes.
Uchiha Shin felt deeply moved. If he were to fight Tathagata Buddha himself, Tathagata Buddha would likely subdue him in just a few moves.
Above the sea, Goku and Tathagata Buddha continued their fierce battle, neither able to gain the upper hand.
At first, Goku naturally did not understand the power