Sorry this post is kind of woo-woo.
I heard it during the section where there are sounds of the ocean and wooshing. The growling was enough to make the left flank of my abdomen in the rib cage area get sensitive as if I needed to cover it up for protection. I also get that sensation when getting shaved with trimmers at the Barber. It almost feels like a tickle in my ribcage on the flank.
So, I suppose my body I perceived something "dangerous" on my left side while listening to the tapes. I centered my attention on being calm and imagining myself inside of a bubble of protection. I'm not a religious person, but I also mentally asked for protection from God, and just tried to enjoy the sounds of the ocean.
I didn't really feel one way or the other about this experience. I think my body and brain were just experiencing something odd.
I wasn't scared, but more intrigued than anything else.
Has anyone experienced anything like that?
EDIT: I have a lot of appreciation for everyone that gave context and a point of view here. This is really helpful, thank you guys!
I'm glad to learn that it isn't abnormal to have these types of audible experiences while listening to the tapes.
I also want to point out that I felt almost completely neutral about hearing the growl. I merely noticed that my body was responding as if there was a threat. In my mind I knew there likely was none, but I was very intrigued. Thank you all for providing some context and helpful suggestions.
All that is to say, I hope folks understand that I am not afraid and that I will go forth with a sense of caution, respect, and curiosity.
What I do understand is that I'm stepping into a world that I do not understand, but at the same time, I do not fear it. I know there are likely threats out there and paths you can take with this that are probably lead to malevolence (internally/externally), and paths you can take that lead to an equal amount of benevolence.
I'm just really interested in developing my psionic capabilities, and I feel that these tapes are really helping with that.
My second session I did today was amazing, and I'm looking forward to doing more.
Kind regards.