I Admire People Who Are Not Afraid To Be Themselves

I honestly never understood what this means. I don't know how to be anything else. I realize it's an issue that people have. I'm not saying that it doesn't exist or something or that I'm better than them because I'm not like that. Because I've never made any kind of conscious effort to not be afraid to be myself. I'm just saying I honestly don't understand what it means to be afraid to be yourself or what it would be like to be that way.