Moving beyond written setting elements to create surprise and wonder for your players, we have already seen the ease and limitations of the random way.
The way of Weirdness is just to pull things out of your imagination. The better and more informed your imagination, the more wondrous things appear. Think of a Renaissance wunderkammer ....
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The museum of Olaus Wormius |
Moussorgsky's
Pictures at an Exhibition, and the pictures that inspired it ...

Lord Dunsany's jewel-like story vignettes ...
Each one perfect in its self-containment, the artistically described miniatures of Weirdness are best described from the surface going inwards... beginning with an impression, a synaesthesia, an emotional feeling, a sensory package that only then takes form by association.
To take an example: the image of rainbow colors on a black background. What does that bring to mind?
Gems against black velvet
Bright eyes, multicolored, curious in the night
Small bright-eyed skittering creatures, hoarders of gems
Halls of black volcanic rock, the creatures barely visible unless they open their brilliant eyes
Smoke thick in the air, black and billowing, multicolored sparks of magic, fireflies
Bright cascade of tones, hurtling in the void
The Rainbow of Midnight, unnatural, a black-skinned queen resplendent in gleaming enamel and polished stones
Darkness and serenity, then sudden bedazzlement, a brittle, tinkling surprise quickly enough gone
We have here the set design and cast for a whole area in an adventure; its appearance, creatures, ruler, hazards, inconveniences and treasures. Self-contained, without deeper meaning, the variety can be sustained for one session or two before boredom sets in and we're off to the next.
The trouble with this method? The same as with random generation, but on a larger scale. Random generation gives you a seeming variety that eventually resolves into a gray mud, like an array of
randomly colored single pixels. Whimsical sensory environment generation gives you bigger pixels - about the size of mosaic tiles - but with enough time and distance the variety here, too, resolves into patternless gray.
We need a way to arrange the pixels, to pick meaning out of the random impressions. This is the deeper meaning of Resonance, and the method of the fantastic I'll explore next.