Everywhere there is a low pitched noise if you listen hard enough. People call it The Hum.
If you focus hard enough, you can ignore The Hum and hear the voices beneath it. After a period of time, and much practice, you will be able to hear the voices in louder and louder areas. After that, you will become able to hear the voices merely by thinking of them. These voices predict the future, seconds in advance.
Wouldn't it be amazing to hear the future, predict you and your friends and families deaths, solve problems... Once you start hearing them however, you will begin seeing the beings behind said voices, and once you start seeing them...
they start seeing you.