In some writings in English language, there are some confusion about the nature of knowledge and mental being. As they think, from Mulla S adra 's points of view, knowledge and mental being are identical. But Java di A muli , a contemporary interpreter of Mulla S adra 's texts, has seen this distinction as crucially. He is of the opinion that this distinction is an important landmark in Mulla S adra 's philosophy, as he remarks that many epistemological problems could be solved in this direction.