Bailey Sellers lost her dad Michael to pancreatic cancer five years ago, when she was 16.  And before he died, he pre-paid to have flowers sent to her every year on her BIRTHDAY. How amazing is that?

It happened again on her 21st birthday this month.  But this time was different because it turns out this note was his last one.

It says that he doesn't want her to be sad for him anymore because he's in a better place. He tells her to always stay true to herself and to live her life to the fullest.

After she shared the letter with her friends on Twitter last Friday, it blew up.  In five days, it's been re-tweeted over 360,000 times, and racked up 1.5 MILLION likes.

I can't stop crying reading this letter. I have a really special bond with my dad and it seems like Bailey had that with her father. Hopefully, she is finding comfort and support in all of the people who are touched by her father's words.