Sesheta's 21 Days of Poetry Challenge II

Dreamweaver

I appear on nights clear or cloudy
Thin and lithe and never dowdy
Dance in darkness while others dream
I spin threads into the stream

They don't see me dancing
They don't see me weaving
They all get caught up in the world
I give them, whimsy unfurled

Sleep, my beauties, sleep some more
Leave me to my rhythmic chore
For if by chance you do ignore me
You'll find a lovely skeleton key

Unlock the door to my counterpart
And out the nightmares will dart
In the darkness I do shine bright
While he goes to swallow the light

I am the Dreamweaver
The nighttime visitor
Leave me to my dance
I'll let you rest in peace


Prompt Subject: Castles in the Sky (fairy tale-ish or fantasy-ish - something you create (does not have to be a story), not something based upon another story)
Word(s) to use: whimsy
Word(s) not to use: [none]
Other requirements/restrictions: at least 15 lines