Peace flower

Okay, so my grandma has had this plant for years, I mean YEARS, right? And up 'till now, not a single 'flower' has bloomed in it... well what is that white thing you see in the middle of the picture?...
Any guesses? Anyone??
Yep, your gut instinct is correct, a FLOWER!!!!
This is seriously the first time a flower has ever blossomed and now it's just starting to look sooo much prettier every time I look at it, and I simply HAD to share it!!!