Reddit reviews How to Know Higher Worlds: A Modern Path of Initiation (Classics in Anthroposophy)

How to Know Higher Worlds: A Modern Path of Initiation (Classics in Anthroposophy) https://www.amazon.com/dp/0880103728/ref=cm_sw_r_cp_api_i_pi5ACbWZXSV0C

I'm merely pointing out one possibility however it's the possibility I believe has the highest probability of being true. You're trying to ask me what has influenced me in this direction. I would have to tell you it has to do with direct experience with phenomena that falls outside the realm of everyday ordinary reality. To go into it here would make too many people uncomfortable and since it was my direct experience it is not something easily provable or transferable. In other words I could tell you but you'd never believe me and I'd have no way to prove it, so I might as well not even go there.

I can however furnish you with reading material that may eventually help you have your own direct experience of non-ordinary reality which might lead to your own revelations.

some of these links will be amazon links but I'm not getting paid by them no worries.

You can do it with buddhist meditation here is a decent guidebook: http://www.interactivebuddha.com/mctb.shtml
http://www.accesstoinsight.org/

here are some other resources that may be helpful.
http://www.gnosis.org/naghamm/nhl.html
http://www.amazon.com/gp/product/0880103728
http://www.amazon.com/gp/product/1882692047
http://www.amazon.com/Not-His-Image-Gnostic-Ecology/dp/193149892X
http://www.workofthechariot.com/
http://www.amazon.com/Cosmic-Trigger-Final-Secret-Illuminati/dp/1561840033
http://www.amazon.com/Valis-Philip-K-Dick/dp/0679734465
http://www.amazon.com/Tibetan-Dream-Yoga-Complete-Conscious/dp/156455743X

You could always just go the lazy route and eat 6 grams of dried psilocybe cubensis alone in a silent dark room. I hear that works for a lot of people but it's not really what I'm into. :)

good luck!