This was a whole new world, and he was young enough to break into the darkness.
This is his most vulnerable period and he needs to grow.
Bruce goes to find the truth. He wants to find the truth for his parents and why fate must make him become Batman.
He studied hard, he kept entering the darkness, and why he merged into the darkness.
He was numb for the sake of Gotham.
Warning: Serious OOC, no outline.
When he came to this world, he became Batman in the main world and experienced magical adventures that he had never experienced before.
Cp Superman
[Main World Future] Entering
Intention: longing