From published material
You are the Maelstrom, you are the fruit of the apocalypse.
Nobody knows what happened exactly, as Vincent wrote, what the apocalypse was and how it ended the world.
After the apocalypse, people started to connect to the Maelstrom. You are this mysterious psychic entity, source of power and visions.
Most see nothing in the Maelstrom, but some see the future in it, others manipulate it to affect those around them, and some others gather positive or destructive powers from it.
You are the Maelstrom, and Dreamers connect to you to know where to go, what to do.