Quote Originally Posted by Sam98034 View Post
Heart is the element that lets you talk to animals. You can probably guess what the transmutation circle looks like.
And you know this applies to FMA how? It doesn't exactly seem like you know from the post before since you said you don't know about the other elements. I'd understand more if the fifth element was Ku (Nothing) rather than heart as it's part of Japanese elements at least in martial arts.