Contrails

The sky's geometry is complicated:
Dashes, dots, and scritch-scratch lines
Tattooing the zenithal super-slate,
With creamy spume-tufts scudding through;
Illegible, indecipherable,
A smooth temple wall with snowflake traces,
Scars that bleed into fungal fumes,
Inverted arroyos that decompose,
That dissipate into a dusty mush,
Absorbed by the blue infinity.