I rely on the Bible to tell me about the beginning of everything....that way everyone gets the same information, rather than the odd person posting on an internet forum that only a few hundred may read......if they read half of what is posted.
God doesn't communicate with individuals any more....he doesn't have to. He has a complete book now that is the most widely read and circulated book in history.
Perhaps it would be more correct to say that you post what you "believe". What authority do you have that the dreams are not just a product of your imagination? Mental Health facilities the world over are full of people who believe things that are not true.....how do you know that you are not just reading too much into what the dream was about?
The Bible supports half of that story. Angels do indeed have free will and satan most decidedly chose independence from his Creator. But not content with his own rebellion, when there was no one in heaven over whom he could exercise his power, he hijacked the human race, just so that he would have lower creatures to make him a god. He wanted worship. (Luke 4:5-8)
God could stop satan any time he wanted, but that would only prove that God is more powerful....satan did not challenge God's power...he challenged his right to rule his human creation and to set reasonable limits on their freedom.
Can I ask why you put such great store in the meaning of your dreams? I have had some 'doosies' myself but I do not see them as inspired or prophetic.....rather that my brain was just getting rid of accumulated junk.
OTOH, dreams can have demonic inspiration because the devil often preys on weak, unstable or indecisive minds.