Do you mean the Book of Revelation?
There are many interpretations, like for much of the Bible, some considering it purely symbolic, some consider it a warning of a future yet to come, some consider it historical etc.
The interpretation would also depend on the context it is considered to have been written in, and whether the allusions to other parts of the Bible are deliberate or coincidental; meaningful, or simply wordplay.
The interpretation I was initially given was that it was a written as a warning to the early Christians in Asia not to surrender their practices to the predominantly Greco-Roman society of the time (1st century). It is this society that is revealed as demonic etc.
But as to what each verse actually means, or how it should be interpreted, perhaps seek an acadamic on the matter, and also a priest, and not just of the Christian sects but other religions... each will likely give you a different answer.