Final answer:
The term for a religious system used for imagining and understanding the universe is cosmology.
Step-by-step explanation:
The term for a religious system used for imagining and understanding the universe is cosmology. Cosmology is the study that deals with the origins and general structure of the universe, with its parts, elements, and laws, especially with such of its characteristics as space, time, causality, and freedom. It encompasses various creation stories and explanations provided by different religions and cultures that articulate the origins and structure of the world, including the origins of humanity and the role of the divine in the order of existence. The ancient Greeks, for example, told stories of deities and creations that reflected their belief systems about the cosmos and humanity's place within it.