The best and most amazing parts of being human are the relationships we make with others.  Even the animals most of us look down on can make those relationships.  We can make friends with people we never thought we would like, we can love, and we can feel grief.  Being human means opening ourselves up to joy and pain.  Sometimes the pain may feel like it will drown us, but it will only win if we let it.  The joys of humanity are worth the pains.