The world is not the one live in only. We have many worlds which are obviously hidden from the human world. That 's because humans are considered to be monsters, deadliest monsters. Not everyone feel comfortable with them, even themselves. They always care about things than they care about love. They never think twice when doing an action which may negatively affect the nature, all they think about is what they will get back in return. So, they think they know it all, while they are lying themselves. There are multiple of things they do not know and we hope they'll never know, and one of them include the hidden worlds.

There is probably one hidden world from the human with world,and that world is the Mundo Oculto which is found in another different universe yet to be unkown.