Mythological themes reflecting the worldview and ideology of ancient societies have various applications. One of the applications is for rituals, which have a symbolic dimension. As if these themes are repeated in different societies, they are classified as archetypes. The archetype is derived from Jung's psychological theories, which is revealed in the form of a symbol in the context of myth, epic, and dream. Since dream and myth are the same in nature and structure, this study investigated Dumuzid's dream to find out the origin of mythological rituals in the third millennium BC in Mesopotamia. This study was conducted by a descriptive analytical method using Jung's archetypal approach based on library studies, the results of which showed a relationship between the myth of Dumuzid and rituals of Mesopotamia society, and the story of vegetation gods connected with the rituals of spring and fertility in nature as the source of collective mourning ceremonies and celebrations held every year in their memory. In fact, the rituals are cultural phenomena left over from the agricultural and prehistoric times in ancient societies. پرونده مقاله