Emerald's Secret

I don't know if I'm a boy
I don't know if I'm a girl
I don't know where I was born
I don't know who's my mother
I don't know when I got alone
I don't know how I got mad
I don't know how I got mad
I don't think I should get back

Secret - Megurine Luka - youtu.be/rNZ6V0RCfFE

I just thought this kind of talks about Emerald because she's an artificial pony.
I think the song is about being judged by society, not knowing who she is and that the cat ears and tail are her disguise to fit in. I kind of feel that way and I think Emerald would too.