Chu Zheng was quite interested in the Heavenly Wutong that had crossed over from another realm, but given his current state, he was unable to move about freely.
In the Tianwu Realm, many cultivation practices of the Taoist orthodoxy were associated with yin god ghosts, which perhaps had some connections with the vast universe.
Practices like corpse nourishment employed by the Gu Family weren't considered disgraceful here; many powerful and influential families possessed such secret techniques.
Currently, his body was that of a walking corpse, which rendered many techniques extremely restrictive to him, causing inconvenience when moving about.
This time, in order to transform and undergo tribulations, he had to dispel a significant amount of tribulation qi, else his main body would inevitably encounter even greater troubles.