According to the contemplations advanced by Russian formalists as well as scholars such as Lui Shtrus with regards to the concept of construct and its attributes, any change in the construct will influence all constituents of the construct.  These transformations are concerned with the structures of construct in each cycle. As the structures of construct are perfect, the other structures cannot be in a state of complete decline. Looking at the cultural history of Iran from the same perspective, one can see that the structures of construct were perfect in the 4th century. Thus, all smaller structures such as poetry, prose, music, mysticism, medicine and architecture enjoyed a prominent position. The wisdom liberty in poets and mu'tazilites's discussions is the main reason behind the prominence and grandeur of Iranian culture and its macro scale structure in Ferdowsi and Biruni age. The dominance of Ashaari doctrines over the Iranian culture led to the decline of wisdom with the structures of constructs secured by certainty giving way to skepticism arguments and logical propositions replaced by speculative propositions