Gold Dust, Jewels, and More: Manifestations of God?

For the last couple of decades, there have been more and more reports of "unusual" occurrences taking place at meetings in which the Holy Spirit is allowed to move freely. These occurrences include gold dust appearing on people and things, jewels suddenly popping into existence, people "falling under the power" (a.k.a., being "slain in the Spirit"), glory clouds hovering or swirling, oil coming from people's hands, and more. Are these real manifestations of God, or just the result of overze...