From HWA’s Autobiography, Vol 1:
Let me say here that in about 99,999 times out of 100,000, when people think GOD is speaking to them in a dream or vision in this day and age, it is pure imagination, or some form of self-hypnotism or self-deception. I have only come to believe that this dream was a bonafide call from God in the light of subsequent events.
Do not hastily ascribe a dream to God. True, the Bible shows that God has spoken to His own chosen servants by this means of communication — primarily in the Old Testament, and before the writing of the Bible was completed. But most dreams mean nothing. And false prophets have misled people by telling false dreams, representing their dreams to be the Word of God (Jeremiah 23, where God says, “I am against prophets who recount lying dreams, leading my people astray with their lies and their empty pretensions, though I never sent them, never commissioned them” — verse 32, Moffatt translation).