Question

what is the origami and what are the essential rules​

Answer 1

Answer:

modern usage, the word "origami" is used as an inclusive term for all folding practices, regardless of their culture of origin. The goal is to transform a flat square sheet of paper into a finished sculpture through folding and sculpting techniques

Answer 2

Origami:

Origami is the art of paper folding, often associated with Japanese culture. It includes folding a flat piece of paper to form different structures.

Rules:

There are no specific rules of Origami. But generally only a single piece of paper must be used. And only folding is allowed and not cutting with scissors.