Spirals are actually quite common. Electromagnetic waves are spirals, the Earth’s orbit spirals through the galaxy. A spiral is just non-static circular motion. Circular motion is one of the most basic and widespread phenomena in the universe, at every scale. It’s not really mysterious that they would show up a lot.

Even Frank Zappa, on his ‘Apostrophe’ album, stated that Nanook rubs it in a circular motion. So, not so mysterious after all. /s

And then there’s the rotation applied to Dinah Mo Humm’s sugar plum