the inner man/woman
One's inner thoughts, conscience, mind, or spirit. Spending time away from technology and the hustle of the city does wonders for the inner woman. It's important to spend time cultivating the inner man, not just the man presented to the outside world.
the ˌinner ˈman/ˈwoman
1 your mind or soul: Prayer and meditation are good for the inner man.
2 (humorous) your appetite: It’s time to do something for the inner man; let’s look for a restaurant.