I have never seen my Grandmother with out a smile but sometimes

I have never seen my Grandmother with out a smile 
but sometimes I dont understand why
her son, my uncle was murdered 
her mom, my great grandmother past away
her dad, my great grandfather past away
her daughter, my aunt died of a terrible illness
her husband, my grandfather had a heart attack
so I asked her how can you still be able to smile
and she said 
"Because I still have you"
<3