You read any of my novels and I leave out the excessive graphics. That doesn’t mean there’s no sex, violence, or anything like that. When I write a scene I leave the excess up to the reader. Which brings up an important maxim.
This means personal involvement. As you mold the character you invest something of yourself in that character.
When using a historical person do your research. You want your character as believable as possible.
In life we end up with a mixture of successes and failures. To be realistic let your character also experience success and a small degree of failure. Perhaps a victory doesn’t satisfy as much as the character anticipated.
While much of his life is fictional in the book, it is also believable. And that is what we strive for: a character bigger than life who is believable. Such a character adds to the overall impact of the story.
When writing about him in Perished: The World That Was I zeroed in on his faith. I could easily picture him traveling about and preaching to people. Although the Bible doesn’t say, I imagined him training others to also worship and serve God.
Using what you know and your imagination try to put yourself in that character’s situation. How does he/she react to change? What is her/his temperament?