Human beings are created for relationships: relationship with their Maker, relationship with their fellow human beings, and relationship with other creation. It is at the core of our fabric to want to know others and to want to be known.
How do we know this? Because everyone dreads loneliness. People get depressed when they are lonely. You can be among a multitude of people but feel lonely when you feel that nobody knows you deeply. On the other hand, you can sit by yourself but not feel lonely when you know that you are deeply known.