The sphere floated at the center of the Martial Heart Palace. Crystalline in form, it radiated light like a blazing sun illuminating the sea of qi. Upon closer inspection, one would discover nine fine lines spinning rapidly across its surface.
Clearly, those nine fine lines had transformed from the previous nine vortices and clung to the sphere's surface.
The sphere itself was also spinning rapidly.
It completed one revolution every second.
As it spun, it naturally drew in the Heaven and Earth Profound Qi around Ning Xiaochuan's body, absorbing it into the Martial Heart Palace.
This reminded Ning Xiaochuan of a natural phenomenon in the cosmos—planet rotation! A planet possessed immense mass and could naturally draw other matter toward itself, transforming it into its own substance and making itself grow ever larger.
The transparent sphere inside Ning Xiaochuan's Martial Heart Palace was like a rotating star, constantly absorbing the Heaven and Earth Profound Qi around it.
In other words, Ning Xiaochuan's martial cultivation was increasing at every moment, and his speed of absorbing profound qi had reached two hundred and fifty-six times! This was the ninth level of "Heaven and Earth Profound Qi."
The speed at which he absorbed profound qi appeared to have only doubled from before, but Ning Xiaochuan's cultivation speed had increased severalfold.
Previously, Ning Xiaochuan could only absorb external profound qi and convert it into his own power when he circulated his cultivation art. But now, it was different. He did not need to cultivate deliberately at all; profound qi automatically burrowed into his body. Whether he was fighting, eating, or sleeping, his cultivation rose at a rapid pace.
"This must be the 'Earth Core Pearl' recorded in 'Heaven and Earth Profound Qi.' Only by cultivating to the ninth level can one condense an 'Earth Core