This is a 'Qi Cultivation' technique.
Directly drawing on the power of the sun and moon for one's own use, it's extremely terrifying.
However, for those with a weak physique, it's impossible to directly draw on the sun's power, as the True Sun Flame is scorching hot, and absorbing it into the body can easily lead to self-combustion!
Therefore, the Great Demon God absorbs the power of the moon; at night, when the moon is high, is when his power is at its peak.
Ding Ling then, with a leap, in the next moment.
Arrived at the Celestial Gate Void Sacred Realm where Emperor Shitian practices the Holy Heart Technique method.
He carefully watched Emperor Shitian's demonstration technique.
In an instant.
[Holy Heart Technique Full Level]
This time it was the complete version of the Holy Heart Technique.
