The so-called Body Transforms into Heavenly Dao meant merging one's own will into a rule, then using that will to operate that rule. That was why, within the Ruin Realm, Supremes who occupied rules possessed greater combat strength than Ninth-Order beings from the outer domains.
Because fighting there meant battling on someone else's home ground. It was essentially the same as fighting inside another person's domain.
If one plundered a rule already occupied by another Supreme, that Supreme would immediately sense it. It was the equivalent of tugging on someone else's arm; it would be strange if they felt nothing.
Chen Fei wanted to Hide the Sky and Cross the Sea, deceiving another Supreme's perception. If the heavenly secrets were operating normally, that would be utterly impossible. Even using outer-domain cultivation techniques to conceal himself would absolutely not work.
But now the heavenly secrets were obscured, directly cutting off one path of deduction.
However, the heavenly secrets being obscured was still far from enough, because the moment you intended to replace a rule with your own will, the Supreme already within that rule would sense it directly.
At that point, trying to do it secretly was already useless, because you would definitely be discovered.
But being discovered and being found were not the same thing. Therefore, what Chen Fei needed to do was ensure that even if the other party knew he had come, they could not determine where his true body was. That alone would count as victory.
If Chen Fei used the origin cultivated from the Mystic Womb True Understanding to wrap around his own will and isolate the other party's direct probing, there was a very great chance that the other party would be unable to find out who exactly was encroaching on this rule.
If this