Wittgenstein says that when the eye sees something beautiful, the hand wants to draw it.

Wittgenstein speaks not only about beautiful visual events prompting motions in the hand but, elsewhere, about heard music that later prompts a ghostly subanatomical event in his teeth and gums. So, too, an act of touch may reproduce itself as an acoustical event or even an abstract idea, the way whenever Augustine touches something smooth, he begins to think of music and of God.

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...a willow tree, unleafed by winter, becomes electric—a maze of yellow wands lifting against lavender clapboards and skies...

My palm tree is an example. Suddenly I am on a balcony and its huge swaying leaves are before me at eye level, arcing, arching, waving, cresting and breaking in the soft air, throwing the yellow sunlight up over itself and catching it on the other side, running its fingers down its own piano keys, then running them back up again, shuffling and dealing glittering decks of aqua, green, yellow, and white. It is everything I have always loved, fernlike, featherlike, fanlike, open—lustrously in love with air and light...Night comes and I am still on the balcony. Under the moonlight, my palm tree waves and sprays needles of black, silver, and white; hundreds of shimmering lines circle and play and stay in perfect parallel.

Elaine Scarry, On Beauty and Being Wrong