Zhang Ruochen was severely wounded and needed at least two days to recover with the help of the Withered Pill.
Zhang Ruochen decided to meditate in seclusion in the following days to improve his cultivation.
I've cracked the 36 apertures in my chest. After I finish refining the divine blood, or the Divine Dew of White Tiger, I will sanctify my apertures. Once I've sanctified all my 36 apertures, my body will become stronger.
Either refining divine blood or the Divine Dew of White Tiger could exercise his body and sanctify his apertures. But the outcome might be different.
There were strong divine power and blood Qi contained in the divine blood.
Refining divine blood could not only sanctify the apertures, but also absorb the understandings of deities to improve his own cultivation.