Yes. For me, it's mostly geometry that repeats - grids, tesselations, and fractals. In part, this is because I have a kind of syneasthesia which connect visual stimuli with my senses of touch and proprioception. These sensations are very hard to describe as they aren't "like" anything that I could compare them with; but, for example; walking across tiled floors or geometrically patterned carpets, or watching animated fractals, can give the "feeling" of the grid moving "through" my head and body, or of my body subtly rippling or changing size and shape. There are more "natural" forms which do this (usually a bit "fractalish" like water ripples or clouds), but geometric shapes do it the most strongly.
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When you are fighting an invisible monster, first throw a bucket of paint over it.