The crystal and the disc

I dreamt that I was in a featureless marble room, in the center of which was something like an altar with a turntable-like device on top of it. I took a large bronze disc, about half-again the diameter of an LP and covered with hieroglyphic-like engravings, and placed it on the turntable. It began to vibrate, rippling almost imperceptibly like water stirred by the faintest breath of wind, creating a deep hum that was felt rather than heard. When the vibration had reached the correct frequency, I took what looked like a double-terminated quartz crystal, about a foot long, and placed it in vertical orientation above the center of the disc. The vibrations of the disc caused the crystal to hover there just above it, and then slowly the crystal began to rotate counterclockwise.

As the crystal rotated, music began to emanate from it, music which sounded exactly like the beginning of the 1971 Three Dog Night song "An Old Fashioned Love Song" minus the vocals. When I play the first 30 seconds or so of the below recording, it sounds so exactly like the music in the dream that it brings back the visuals and gives me goosebumps.

Although the crystal looked like a crystal, I had a strong sense that it was at the same time some sort of faery being dancing. Beams of multicolored light began shining from it in all directions, creating kaleidoscopic images on the white marble walls. My impression was that both the music and the lights were somehow "translations" of the engravings on the disc. I felt that by watching and listening I was absorbing enormous quantities of knowledge, though what that knowledge was I in my waking state am no longer able to say.

The final part of the dream is less clear in my memory, but I believe at some point the ceiling of the room disappeared, and the crystal rose up into the sky, growing to the size of a high-rise building. As the crystal grew, the light dimmed and the music deepened to frequencies too low to be perceived, but I knew that the music and the light show were still going on, broadcasting their message far and wide.