Letters of Love

I read the sweetest, saddest thing ever today. :(
It was about a 6 year-old girl named Elena--so friggin' cute--who died of brain cancer. When she died, she left her parent's devastated--but then they found tons of little letters and drawings of love she had left in notebooks and other places around the house. They'd say stuff like "I love you mommy" or "For Dad" and it'd have hearts all over it. They said that this is how Elena was helping them through this, telling them it'd be ok.