Renaissance theater had a mechanism for hanging actors and figures from the top of the stage to show Angels and Heavenly creatures.
Explanation:
The appearance of Heavenly creatures, angels or ghosts was a regular occurrence in the theater of the time so the theater had previous installed machinations to make sure such performance can be done seamlessly.
It was a mechanism that used levers and pulleys to have the actors or figures representing such creatures to hang from near the top of the stage with a rope.
This suspended air form was a symbol for such creatures.
