Since dreams were beyond the control of human beings and were sometimes accompanied by prophecy, people considered them to be supernatural issues that were inspired by some from another world and through a pure conscience.
before the explanations of psychology, people considered other people's decisions acceptable based on their dreams; Dreams that were in a two-way interaction of credibility with the viewer. In the history of Iran, we see decisions that were made or changed at once.
The effect of sleep was also different in different social classes. In the Safavid period, there are many examples of the upper classes, such as kings and governors, who made decisions based on dreams;
Therefore, this article seeks to answer the question that what effect did dreams have on differ- ent social classes in changing the life plans and decisions of individuals in the Safavid period? In many historical texts, rulers or high-ranking people have confirmed or changed their deci- sions in the morning based on a dream.
In this research, dreams are considered as one of the effective factors in people's decisions. In the Safavid era, there were many such dreams that were referred to for decisions and caused changes in people's daily life plans.
This research, with a descriptive-analytical method and in a comparative way, aims to inves- tigate the function, the impact of the dreams on people's daily lives, their decisions, and the way the historian reflects dreams in historical sources.