No knowledge is real except knowledge inspired by God. The human brain does not have the capacity to save even a single style of inspired knowledge. So, the divine illuminated light spread from the preserved scripture (Loh-e-Mehfooz) to provide information to humankind. Then according to their interests and in order to attain their own objectives and from their own viewpoint, humans reject almost 999 per 1000 of the information given to them. Furthermore, they distort the single bit of information received and preserve it in their memory. This distorted information then becomes the hues of his experience, observations, activities and practices. Thus these become the achievements or heroic deeds of humanity, the predetermined and supposed directions, formulae and principles that humanity takes to be its own discoveries. And this nonsense, mankind describes again and again as his experience and observation. This is what is called physical knowledge.