Implant is not the right word.
She uses her ability ONLY and they just remember their own REAL dream.
There is another possibility.A best one which joins Skybladeīs theory and mineīs.
Maybe they dreamed about their childhood and it activates the memories they already had.You know,when a person has amnesia they donīt just remember everything immediately when someone tell them about it.
But a picture (or film) would do it better than words.
Anyway,Irvine know about his age,his feelings and about the war because her ability not only let them see the past but itīs like they WERE THERE so they just experience the feeings and the thoughts.
