I heard the guy in Silent Furnace saying that the heart field has been measured as far as 8 miles, which if so is insane.
The guy in SF however it seems he thinks you have to rely 100% on your heart, shut down the mind part and just go where the heart goes which will eventually make everything go fine (though not necessarily give you what you desire like a million dollars, or at least this is what I understood) because bending reality isnt in tune with nature.
It seems.... the guy didn't took in count parallel realities which resolves the conflict with nature.