The process of the souls of Human Grass entering the Sea of Red Spider Lily is almost as previously discussed.
On the Abaraki Plain, there exists a seal left by Izanagi, living Human Grass cannot leave this place.
However, Yatagarasu holds the authority to guide the deceased, and Xiangyue Xun is the ruler over the Three Paths River.
The two of them can indeed barely manage to send those dying souls, severed from their bodies, to the Red Spider Lily on the other side of the MingHe.
However, those souls of Human Grass have been lingering in the twilight state on the Abaraki Plain for too long. Even with the help of Yatagarasu and Xiangyue Xun, traveling through space to enter the Three Paths River remains a considerable burden for those souls.
Therefore, even when they reach the Three Paths River, the souls of the Human Grass can only enter a state of unconscious slumber.