As the celestial phenomenon unfolded across the sky, Gu Xiu sat in the Listening Rain Residence, his expression devoid of joy or sorrow.

He sat cross-legged, introspecting and comprehending his own being.

At this moment, within his boundless Dantian Sea, a monumental transformation was taking place.

Speaking of the Dantian Sea, the term "sea" is somewhat misleading, as the Dantian Sea of a Qi Refining cultivator is filled with gaseous spiritual energy.