A "Yuga" is a term from Hindu philosophy that refers to an age or era within a cycle of time. According to ancient texts, there are four main Yugas: Satya Yuga, Treta Yuga, Dvapara Yuga, and Kali Yuga. Each Yuga has distinct characteristics and moral qualities, with Satya Yuga being the age of truth and righteousness, while Kali Yuga is often associated with darkness and moral decline. The concept of Yugas is part of a larger cosmological framework that includes cycles of creation and destruction. Each Yuga lasts for a specific duration, with Satya Yuga lasting the longest and Kali Yuga the shortest. This cyclical view of time emphasizes the belief in the continual renewal of the universe and the inevitable progression through these ages.