What do you know that no one else knows ?

The one thing I know that no one else knows is what it's like to walk in my own shoes. No one knows my life or what my journey has been, just like I don't know what it's like to be in someone else's shoes. No one knows what's in my head, just like I don't know what's in someone else's head. We have no idea what it's like in someone else's mind. Their thoughts, their feelings, or how their mind works. That's something only we know, that others may not. (Does that make sense)?