What is the difference between "demon" and "essence" I didn't mean to swear. ...

Demon is a derogatory term, fine belongs to a commendatory term, demon refers to evil and confuses people, and is called a monster in superstition. Generally refers to evil. Essence means perfection, the best. In superstition, it is believed that plants or animals are generally kind after practicing the Tao. But we often say that goblins are bad after a long time. Actually, there is a difference. I hope my answer will satisfy you!