As they integrate, they bring their own mental, emotional, spiritual consciousness and evolve the life to resonate with their purpose and intentions.
Incarnating into a fully grown body allows the walk-in soul to engage in embodiment without having to go through the two decades of maturation that humans need to reach adulthood.
In the Death of Superman story cycle, a handful of new superheroes appeared, among them John Henry Irons, who called himself the "Man of Steel".
[7] The X-Files episode "Red Museum" discusses walk-ins, described by Mulder as enlightened spirits who have taken possession of the bodies of people who have lost hope and who want to leave their life.
If either or both of the pair gain awareness of their Twinner, they can learn to occupy the other's body in their respective worlds in style of a walk-in.