Reddit mentions of Huna: Ancient Hawaiian Secrets for Modern Living

Sure!

There was no initiation, shamanism is something you do. Talked to a bird? Good for you, you're a shaman now! Helped the bird by sending positive energy? You're definitely a shaman now. After one bird healing you're maybe not the most experienced shaman in the world yet, but you're no doubt a shaman to the extent of healing that bird. An initiation can help convince you that you are now a shaman, which makes it easier to do shamanic stuff, it's the doing that matters, not the initiation. Having said that, you might also be part of a shamanic order that requires initiation for you to be considered a member, but that's about the organization of that order, not the shamanism. It used to be that knowledge was only shared if were part of some kind of organized teaching club like this, but those days are long gone.

I found a tradition that basically says: Use whatever works and you can consider it part of our tradition- and then proceed to give you [traditional tools that are so good(http://shaman.capo.casa/the-haipule) you don't find yourself incorporating all that often. It's always nice when a tradition allows for the survival of the most effective technique.

What I ended up with is a version of the most powerful kind of traditional Hawaiian shamanism that was expanded a bit and then translated for Western students. So to me, that's a part of global culture now- Italians have the best food, and Hawaiians have the best shamans (to my knowledge). I also looked for traditional Western shamanism but I what little I found that was left turned out to be chock full of pitfalls and weird tradeoffs and guilt and fear and misunderstandings due to secrecy that I decided to consider it lost to history and decided to base everything I do on that translated traditional Hawaiian approach. My own culture's shamanism is coming back fresh from the spirit world through lots of channels, but I found a system that has been honed by generations and generations of shamans to be much more enjoyable to work with because there are so much fewer kinks to iron out.
Hope this helped!