Thyrliens

Thyrilens (Thigh ril lei ans) are the Divine Race of Desna that live with her on the Cynosure operating and maintaining it. They look like Halflings with wings sprouting out of their backs but are virtually transparent, they spend much of their time watching over and following travelers who are traveling at night, being incredibly hard to see in the dark. 
Once chosen from The Greylands worshipers of Desna spend centuries in dream like slumber dreaming of all things wonderful and delightful before awaking as Thyrilens, only after they have explored every wonder on Trayst within their dreams.