Filament, Filament, Filament

Variation by species,
By circumstances, sometimes
Even individuals—

Webs can be vast, chaotic,
Gossamer, dense, exact orbs,
Parachutes, trapdoor linings.

Whatever’s worked in the past
Tends to repeatedly get
Repeated, but does it get

Itself repeated, or just
Its spinner’s inheritance?
Some lines seem to have a mind

Of their own, especially
When they cling to you at night.