You know that people create their perception of the world, its not the actual world as it is that we are perceiving, but highly subjective world we see. But the funny thing is that we are not conscious about the subjectivity of our perceptions. We are the creators of the world, but its not th real world we create, its our own worlds we are creating, but arent aware that we are creating our world ourselves.
Projection is a normal human phenomena, it happens all the time, we even project to our visual fiel all the time. What you see right now is mostly your brains adding stuff to your vision, its not all coming from your eyes, and whats coming from your eyes, is very limited compared to whats actually infront of your eyes.
Now projection also comes in when filling the gaps that we dont CONSCIOUSLY understand and can even interfere with our vision if we believe hard enough(people seeing ghosts etc).
The source of our projections is our unconsciousness(memories, repressed thoughts, some claim oir unlived life, thoughts that have yet to get intense enough to brake the treshold of consciousness(and are waiting for a proper moment to erupt) etc). When we project, we see our unconscious self in others, things in your mind that arent intense enought to come into consciousness by itself, but is interfering with your cognition and perception.
On what REASON(belief to a man made book about belief is not a reason) do you say that this couldnt happen with the concept of god?