He was unwilling, he was desperate.
But he would not admit defeat.
Amidst his despair, he chose to place himself in a life-and-death situation to introduce Yu Xian and the Human Realm as a variable.
Although the data Yu Xian collected was insufficient for him to completely simulate the final outcome, it was at least not so desperate.
At the very least, he saw hope.
The River Map Luo Book was his Lifebound Spirit Treasure, and it was with this item that he had come this far; thus, he was willing to put his faith in it and gamble everything he had.
The conflict between Human Ancestor and the natural law was exactly what Yu Xian wanted to see.
But seeing how dejected Human Ancestor was, having admitted defeat before even starting, it was hard for him to remain calm.
If Human Ancestor wouldn't take the lead, was he supposed to combat the Heavenly Dao of the Spirit Realm himself?
Well, it wasn't impossible.
