What is realm of the dragon

Realm of the dragon is a term used to describe the "plane" that dragons inhabit. Contrary to what you may have read in fiction novels, they don't kidnap "damsels in distress", generally don't eat people and usually don't live in caves. (Unless it happens to be a cave dragon) Dragons live in every type of environment that we as humans know and some we don't know. Dragons are simply on another plane of existence, similar to the astral plane. The realm of the dragon is just a synonym of their plane.


In terms of physics, the 'world' they inhabit, is on a different position to ours on the 5th dimensional plane. our two 'worlds' are very close together, so fluctuations in the dimensional plane can cause overlaps. Areas of overlaps can vary greatly, both in area and time.
It is in this area of overlap that the humans' and dragons' worlds can interact.
Quantum tunneling can also mean that a human pass into the dragons' world when the plane returns to it's resting state, which may account for disappearances of people. Dragons, far more intelligent, would know much more about this than we, so would be able to avoid being left in our world.