This quote means that the two people mentioned share something special and deep that cannot be seen or touched. The quote implies the two people have a connection that runs very deep and that they feel a strong bond and understanding between them. This bond is not based on physical features or material possessions, but something more spiritual and abstract. They “speak the same language” and understand each other better than anyone else can. They feel like they are connected at the soul, no matter what their bodies currently look like or what they own.