That was pure Spiritual Liquid, formed from extreme compression. This one glob alone was comparable to the peak Spiritual Power of ten Qi Cultivation Great Perfection Cultivators!
He could also feel that his Power had taken a fundamental leap forward!
He wanted to go to the Cultivation Room to test its might, but he suppressed the impulse. Instead, he absorbed the remaining medicinal power of the Foundation Establishment Pill to stabilize and enhance his Cultivation.
While this was a somewhat wasteful use of a Foundation Establishment Pill, to him, it was nothing.
As he finished absorbing all the medicinal power from the Foundation Establishment Pill, the Dantian Qi Vortex inside him continued to rapidly refine it, gradually filling the "empty barrel" of the Foundation Establishment Realm.
