Hello.
I have started reading “Initiation Into Hermetics”, and I would like to gradually work my way through the exercises. In the section called “Magic Mental Training”, the first phase is to learn to observe your train of thoughts. My question about that is: how long do I need to work on that phase before moving on to the next one?
Thank you.
The book says right in it: move on when you have mastered the exercise. For some it will take ten days, for others it will take longer.
Thank you. 
When I first started the exorcise I physically started hearing spiritual voices so I guess you have to practice until you feel you’ve mastered it,
Is there a exercise for physically hearing spirits?
Tis called thought observation, here’s the exorcise:
You must observe your train of thoughts as the silent observer don’t mentally say anything, stay silent & observe when a thought pops up observe it don’t mentally say anything then let it flow besides you like a stream & let it go thusly repeat,