The mental pressure to which Daniel's mind was subjected kept increasing with every single step he took, forcing him to feel as if something as easy as walking had turned into something akin to an insurmountable obstacle.
Luckily, for someone with the rare ability of mental fortitude which Daniel had learned from Aeron, this pressure was easily revealed for what it truly was... an illusion.
An illusion which after just a few minutes, in front of the shocked and dejected eyes of the observers, he was able to defeat by reaching the top of the flight of stairs with what appeared to be no effort whatsoever.