After Li Yuanba used the Forbidden Spirit Talisman to seal the Cave Heaven Core heart, he felt that the Cave Heaven lost its control.
Especially the palace he was in, originally one with the Cave Heaven, but after losing the Cave Heaven Core, the palace became separate from the Cave Heaven.
Without any hesitation, he prepared to store the Cave Heaven Core heart into the soul crystal ring.
But he discovered that the Cave Heaven Core heart could not be stored into the soul crystal ring, as the spatial level within the Cave Heaven Core heart was seemingly not lower than the spatial level within the soul crystal ring, leading to the inability to store it.
This is just like how the soul crystal ring cannot store another soul crystal ring of the same quality; only items with a lower spatial quality than the soul crystal ring can be stored inside.
