Klaus appeared in Jason's mind space, arriving in a large house.
The plan was to enter Jason's mind and help wake him up from his trauma and pain, for the longer he stayed comatose, the more dangerous it became.
It was a world of imagination created by Jason's mind. Klaus most certainly didn't know what to expect, so he started to observe.
Slowly, weeks began passing, which turned into months, and then years went by. Klaus was observing Jason's emotions and trauma in a form of memory he kept replaying over and over again.
In what appeared to be sixteen years, Klaus saw Jason's mother give Jason a small box.
This box brought back some memories for Klaus.
It was the same box his mother had given him when she bought the medicine for the awakening. So when he saw this, he knew what had happened.
It was even clear from the way Jason was smiling.
