In ancient times, Aristotelian Solipsism and Platonic Idealism defined how people understood reality. In those days, every person's subjective mental experiences were considered to be reality itself and humanity's collective thoughts were thought to shape reality. For thirteen centuries, the tyranny of Catholic Scholasticism guaranteed that persons whose opinions strayed outside Greek philosophy would be tortured and executed.
The seventeenth century changed everything. Rene Descartes was the first to explain (see Dualism) that mental experiences were seperate and and distinct from physical reality. Then Galileo Galilei used physical experiments to prove the physical realm was actually real. Finally, Isaac Newton published his "Principia Mathematica..." which proved that the physical realm always behaves predictably and with mathematical precision. Meanwhile, the Church continued to insist that mental experiences actually were reality itself and that the physical realm was a delusion common to heretics who dared to think for themselves. Countless harmless people were burned at the stake because they expressed opinions contrary to the notion that mental experiences are actually real.
The Bible was written by and for people who embrace ancient Greek philosophy, which is why the Bible is far more comprehensible if read with the assumption that subjective mental experiences are actually real and that thoughts are capable of shaping reality.
People with an adequate modern education know that, contrary to absurd Christian doctrine, the physical realm actually does exist and is the true basis of objective reality. They also know that their subjective mental experiences are unreal abstractions which are the result of natural processes operating within their own living brain.
Meanwhile, ignorant people continue rely on ancient superstitious beliefs rather than modern factual knowledge and stubbornly insist their mental experiences are actually real. It's just a small step from "believing in" an imaginary God to believing He is actually speaking to you.