Another great topic.
My experience on this subject goes like this:
Their are Demon Realms quiet different than Astral Realms ... it's a completely different CHANNEL. There a many Channels to tune into!
Demon Realms 3 in NUMBER (from my actual experience seen over many years):
Lucifer realm: Temptation realm, with lots of animal-beast looking beings, writers of the last century described them Werewolf-type beings , Under-foot , Moon related, and yes they have what are called "handlers" of some human beings that have given themselves over to perverted thoughts and acts. I see some humans who have VERY Dark Energy around them. Lower Lucifer Realm have "dead" humans with human-like heads on insect bodies, lots of other types too, banshee's, dark-robed ones with RED eyes, ect.
Second Dark Realm, Arihmantic, ... Silver-bat-like winged beings, with weird mouths and dark flowing shrouds, that are called "egos", believe it or not, most humans have these beings inside of them, and 99.9 percent of people you encounter are "ego's" on earthy plane , these beings come inside a human around the age of 4 or 5 , and that is when a child feels seperate from others and FEAR develops. Not sure if this information is out yet, but, I guess it is time to alert some as to the Truth about what our actual condition is, CASTING out the EGO , which most human's think is who they are. These ego's are responsible for 100 million humans dieing in last Century, who do you think is killing us, the EGO is... and YOU are NOT the EGO but it's who you think you are, until you WAKE UP!
Third Dark Realm is Glamour Beings, the main one looks very Horrible, but I understand she once was very Beautiful in Spiritual Realm, very,very, horrible, but she can confer , Glamour on a human to make them appear to others "beautiful", smart, and I believe some movies show the "glamour demon" ... usually telling their HOST that they will be Famous, Rich,ect, if they "sell their soul to this demon".
Astral Realms are totally, different Channel and what Bruce wrote above sounds like my experience too.
I do go down into HELL realms and dress accordingly , not showing the "LOVE-light"... and I usually have a "good" time.... trying to help.
My Belief system is GOD is ALL POWERFUL and GOD holds ALL the POWER, demons have absolutely NO POWER. It's not a 50/50 game of good/evil. GOD has 100 percent POWER!
Also, as Bruce writes, Demon power is based on believing in a LIE, a LIE about GOD. But since God only see's LOVE and the Kingdom HE created, these demons are Dreaming a LIE, and many humans are also Dreaming a LIE about GOD. Free Will, you can dream but you will eventually WAKE UP.
Artistic TYPES can sometimes see this Channel at times , so if they CAN , Spiritual Practice becomes Necessary , and Practices that are LOVE BASED!
My 2 cents to the topic!