Occult Hall
The Key · LESSON 18 OF 26

What are the appearing spirits made of?

Water, clouds, wind and solar vapour in Book II

12 min study Member lesson Sources & context
Subtle clothed forms emerge from a storm, a flame and radiant solar mist in one landscape.ILLUSTRATED FOR THIS LESSON
A choice for this device

Essential storage

Always on

Needed for sign-in, account security and remembering your storage choice. These features cannot be switched off here.

Turning this off clears optional reading records on this device and stops automatic syncing. It does not delete your account or progress already saved to it.

Analytics & advertising: we currently use no trackers for either purpose.