One option is, back then, his own choice was to leave behind the residual body and have the main body be reborn; the residual body bearing the enormous cause and effect of disrupting the balance in the Forbidden Land, allowing the main body to undergo third-life cultivation, so now he should listen to the main body.
The other is that Mu Dan's avatar and Mu Dan's main body maintain a certain quantum synchronization state;
And all the machinery on Earth, even in the area of the Earth civilization fleet within the entire Forbidden Land, Mu Dan can directly mobilize all the machinery.
Mu Dan wants to kill him and Ye Zi effortlessly.
Luckily, Mu Dan generally respects him.
Even though Mu Dan doesn't believe that his second-life residual body has anything to do with the word 'Master.'
"Why not ask Professor Shen?"
The Three Realms Wanderer slightly raised his eyebrows.
