One of my friends mentioned that Eko's last vision, where he and his brother are walking off the soccer field together, could imply that it's possible to change what happened that fateful day when Eko started on the road to being 'evil'.

I can't remember his original flashback that well...Were him and his brother playing soccer when the bad guys showed up?

Woah that is really cool, I like this idea a lot! cool! that would explain why perhaps the bodies disappear, because they change their past. Its a little sci-fi but I like it. Also, im pretty sure that the ending with his brother was just him remembering a better time and dying in peace.

Yeah...but what about Eko's body? Or Ana's...or Libby's...or Boone's...Shannon's...the Marshall?...Their bodies didn't disappear. They buried them. The only disappearing bodies we've seen is Yemi's and Christians. Yemi's body was burnt up in the drug plane...and Christian's...god only knows.

It's a nice idea but I think it was just the last thing going through Eko's mind and what Eko's story was all about-Him and his brother