Annan, like a spirit form trailing behind, followed Amabelle, the steward, into this massive building.
In this form, Annan could pass through any physical matter at will.
However, Annan was unable to use his transcendent perception to scan the city. After all, perception wasn't a one-way ability... If one's perception was sufficiently strong, they could also sense if someone else was perceiving them.
This would effectively interact with the world and cause an impact. If that happened, Annan would be forcibly ejected from this state.
For that reason, Annan needed someone to guide him and navigate where he should go.
Annan wasn't looking at the world through his own eyes either.
To be precise, Annan's form now functioned as an omnidirectional camera that continuously gathered information from his surroundings—far beyond the scope of mere "visual" perception.