Dualistic cosmology is a way of thinking about the universe where everything is divided into two parts or forces that are always in opposition to each other. Imagine a balance scale that has two sides — one side with good things and the other with bad things. You might think of it like a game of tug-of-war where there's a team on one side trying to pull everything to the left, and another team on the other side trying to pull everything to the right.
In dualistic cosmology, the two opposing sides are usually referred to as good and evil or light and dark. This means that everything in the universe can be categorized as either good or bad, light or dark, or some other kind of opposite. Dualism is a pretty old idea, and many cultures and religions have some kind of dualistic cosmology as part of their beliefs.
Some people who believe in dualistic cosmology think that one side is stronger than the other, and that they're battling for control over the universe. Others believe that the two sides are equal but opposite, and that a balance needs to be maintained between the two. This way of thinking can influence the way people view the world around them and their place in it.
In summary, dualistic cosmology is a way of seeing the universe as a constant battle between good and evil, light and dark, or other opposing forces.