"Snowfall", by Ravi Shankar, has this as its first verse:
Particulate as ash, new year's first snow falls
upon peaked roofs, car hoods, undulant hills,
in imitation of motion that moves the way
I found it strange that the very first descriptor of snow is that it is like ash. To me, "ash" conjures up blackness, and "snow" whiteness, so this was a jarring comparison. There are plenty common white particles which could have been used (sugar, salt, baking powder...). Is there some significance or meaning that can be extracted from this word choice? Some reason that a particle of the opposite color would be used?