I'm not entirely sure specifically what 'krista davis fantastic fiction' is about without more context. It could be a genre of fiction created by Krista Davis, perhaps involving elements like magic, adventure, and unique characters.
I'm not sure specifically about Krista Johnson's Fit by Faith success story. It could potentially involve her achieving fitness goals while relying on her faith. Maybe she used her religious beliefs to stay motivated during workouts, make healthy eating choices, and overcome any obstacles in her fitness journey.
Perhaps discipline is an important part. If she followed the principles of her faith, it might have instilled in her a sense of discipline that carried over to her fitness efforts. For example, if her faith emphasized self - control, she could have applied it to controlling her diet and exercise schedule.