What is the process of astral projection/remote viewing and what does it feel like for you? Do you fully leave your body - though your physical body is still alive and breathing?

I’m curious because I am unsure if this is what I have been experiencing myself or not. There’s been quite a few times where I’ll get this burning in the back of my neck, and it’ll run all the way down my spine and into my feet. Then I get this feeling that I am slowly being pulled out of my body. It’s almost like a tunnel, and all the physical things that are in front of me get further and further away and start going dark. Of course, every time it happens, before I fully surrender to it I panic and have to snap myself out of it because it literally feels like I am dying or just leaving this physical reality completely. But now I’m wondering if maybe I am just being guided to astral project and I’m just letting my fear get in the way? Not sure if anyone else has experienced this as well but all answers are appreciated. Also I’d love to hear what your experience with astral protection is like. Thank you EA! ♥️