I suppose, like myself, many of us have 'alter egos' or a second personality that lies within the visible personality most people see. I have tried unsuccessfully to explain this to my wife and she can't understand it. I think that is why we describe some people as an 'open book' where what you see is what you get and others we describe in 'mysterious' of hard to get inside of. My alter ego sometimes affects my visible personality but mostly is just part of my being reserved for myself. God of course knows everything about us so He is acutely aware of it and all that it means. I think the 'somebody else inside' can be either good or bad just like our external person. I also think that people who have another person on the inside can either be very troubled or very blessed by that person. Personally, I often like the 'other me' better than the worlds me.