Pete-Belief in spirits (in objects or in actions like wind) is the product of inferential logic. When nothing readily visible accounts for an action or growth, something invisible must. These invisible agents naturally took the form of the visible animals and people the mind is familiar with. The ability to reason inferentially is vital for survival, but often leads to incorrect conclusions when the causative factor is less than obvious. My clever dog has inferential reasoning. When the wind blows and slams a door he barks assuming someone came in. Who knows how his mind explains the fact that he sees no one. He might be clever enough to imagine invisible someones.
This is all clear. However, it doesn't answer the question of why, instinctively, does man always infer that it is a being greater than himself?
From the beginning of time to now, it's the same conclusion.
Why do you suppose the very first human that assumed it was God inferred this way... when the idea and concept of God was presumably non existent?