After talking with Fury, Mara knew that she shouldn't truly worry about it too awfully much unless he begins to show the signs of it. and as he had gotten older, Matthias didn't really show signs for which she was grateful for.
And yet, he's just a happy go lucky young child who loves his parents and is close with his mother. As he had gotten older, however, he loved learning how to fight and defend his home from demons.
One day, however, he felt a vision coming on and it scared him. He got home and told his mother what he saw, Mara knew enough to understand and tell him this. "It's alright Matthias. It was just a harmless vision and it won't kill you. It runs in your veins as much as it does mine."
He held onto his mother while his nerves calmed down and decided to begin a journal of his own. She smiled as she returned to cooking and getting things ready for the evening when he gave her a hand with getting the table set when Nathaniel arrived home.
They embraced him and managed to get everything ready while they talked of other things for the time being. Later on that self same evening, after tucking their son in for the night, Mara told him about the vision. "He was scared Nathaniel, I could feel it through how he trembled after getting it, but he didn't really tell his childhood friends about it for they know that I'm also a seeress as well."