What is my heart?

Hellow,every guy!
I'm very glad to see you here reading my blog.But this is my first essay,I don't know what to write about!So,my dear,forgive me as the God says!In fact,you could find my heart here,the inside heart may be I don't even know.So what am I?I don't know very nice,and I need your help.You could tell me when you find me.
The future is unknowable,we all know is the dead history and the feelings of flying away along the wind.....