Thanks for sharing those useful resources @BryWisteria! There was also this topic that had some useful information about naturally-occuring astral traveling: My 1st Astral Travel Podcast
I think it can happen spontaneously to anyone but it’s hard to provoke an astral travel experience without either lots of training or substances. Personally I managed to experience some amazing lucid dreams this year and that’s good enough for me.
@john4 Did you use any specific books when you had that experience?