Joel 2:28 - And it shall come to pass afterward, that I will pour out my spirit upon all flesh; and your sons and your daughters shall prophesy, your old men shall dream dreams, your young men shall see visions...
Acts 2:17 - And it shall come to pass in the last days, saith God, I will pour out of my Spirit upon all flesh: and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams
I have a very close friend who believes he occasionally receives divine instruction through his dreams. I've never known him to be a dishonest man, nor a man who is easily deceived. Whereas he is a man who tries to follow in the ways of God, whereas the nature of his dreams are so radically different than anything that I have ever experienced, whereas the dreams appear so similar in content and symbolism to other dreams and visions recorded in scripture, and whereas the messages his dreams convey appear to be in harmony with other exhortations God has delivered, I firmly believe that my friend's visions do, indeed, bare unique and personal instruction from God to him.
This is a depiction of a particularly startling dream my friend related to me. He described wandering through what he could only describe as "mists of darkness" without a guide. He came upon the ruins of a once-magnificent city, with large shapes he figured must have been the remains of great and spacious buildings.
When he passed through the city he came upon a vast multitude of souls, having no faces, and all seeming to breath and undulate as a single form, like a "hive mind" he described it. Standing apart from the multitude was a single man, thin, tall, with unusually long fingers and a shimmering white shirt under his suit coat. This figure had long hair covering most of his face, except for a thin part, through which my friend could see the figure smiling a contemptuous, gloating smile.
This lone figure stretched forth his hand, as if offering to my friend to become one with the faceless ranks behind him. With a voice that was both chilling and yet somehow sweet, uttered a single phrase: "Join Us."
My friend described awaking suddenly from this dream. He believes it to be a chilling warning from The Lord regarding the seductive nature of sin.
A similar vision was recorded by the prophet Joseph Smith in the book of the Doctrine and Covenants section 76, verses 28 and 29:
"And while we were yet in the Spirit, the Lord commanded us that we should write the vision; for we beheld Satan, that old serpent, even the devil, who rebelled against God, and sought to take the kingdom of our God and his Christ—
Wherefore, he maketh war with the saints of God, and encompasseth them round about."
Other similar visions can be found in Jeremiah 51:36-50; Ezekiel 32:17-26; Joel 2:2-7; Matthew 25:41-46; Revelation 18:2; 1 Nephi 8:7-8, 23, 27-28.