Family

Affection is responsible for nine-tenths of whatever solid and durable happiness there is in our lives. 

C. S. Lewis

 In my experience it is Affection that creates this taste, teaching us first to notice, then to endure, then to smile at, then to enjoy, and finally to appreciate, the people who "happen to be there".  Made for us? Thank God, no. They are themselves, odder than you could have believed and worth far more than we guessed.  
CS Lewis - Four Loves