Morpheomancy is known as the "stronger" version of Oneiromancy and even the slightest thing done wrong can have horrible consequences. It includes everything you can do with Oneiromancy, but also some special (and more dangerous) other things. These include complete control over other people's dreams (which is officially illegal for non-licensed persons) or being able to actually enter somebody's morpheon (somebody's dreams) or even create gates to the Dreamworld itself. Anybody can use those gates to the Dreamworld but those who mastered Morpheomancy have a higher chance of survival or leaving without brain damage.