Aidan Aguilar has been struggling to fit in at school, so his mom wanted to make his thirteenth birthday extra special. She made a post on Facebook, calling for anyone who read it to send her son a card for his birthday, because he loves getting mail. What she and Aidan got was far more than they could have ever hoped.Find out how the kindness of strangers all across the globe surprised both Aidan and his mother by watching the video above.