I have a character that is an old man, and acts as a mentor to the younger characters. My story is going to have flashbacks to when he was a kid, in the same position as the kids he is mentoring, but I am really struggling in visioning who he was as a kid. Think Obi Wan. Mentor to Luke. Then we see what he was like as an apprentice. How do you work backwards to really figure out who someone was?