((This thread is from a post I made a while back in a now dormant thread, I never got a response to these theories so I thought i’d make a thread))
The way I see DCs is that they have different “classes” as I will now list.
These DCs are there to simply make the scenario you are in as real as possible. They aim to keep you away from lucidity and even act normal when you become lucid. It is incredibly hard to tug them out of character, and if you persist enough they will eventually just ignore you.
Different people call these DCs by different names and interpret them as many different things. Some people see them as their DG, some as their SG and others think it is the embodiment of their SC (However, this is not always the case.)
These DCs can control your environment and have the most control in the dream, perhaps even more control than yourself. They can cause you to become lucid, or lose lucidity. It can be harder to get ahold of this class of DC than other classes due to their influence.
The shadowy figure in your doorway, the person chasing you down that corridor, the hand that just grabbed your leg. A mix of “The Actor” and “The Director” however, this movie is a nightmare. These DCs are the main obstacle of fear you face when having a nightmare. Unless you face them, they are merely an actor, and will feed off your fear until you wake up. When you face them, they drop their act and perhaps change form. They may reveal some truth to you, and perhaps even a gift. Not the most important, yet probably the most influential DC you will encounter.
A step up from actor. These DCs may start off as an actor, but will drop their act if you become lucid and challenge them. Most of the time, they will happily hold an out-of-character conversation with you and may even reveal some secrets about yourself, perhaps assist you in advancing your lucid powers and knowledge.