ah, the difference between spiritual energy and physical energy. well, i don't have time to give a complete response tonight, but trust me, after 7 years of getting to know both my spirit and my body very intimatly (bad spelling?) i can tell you for certain that there is a difference.
try "raising" adrenaline in your body and you should feel the difference, the main thing being that adrenaline only flows in the physical paths that are open to allow it. spiritual energy flows through the entire body regardless of physical makeup, and even out of the body.
~kakkarot
Somewhere endorphens are involved as well. In addition to being released during exercise, they are produced during meditation.
The vibations I feel before an exit are extremly different from anything that I have ever felt while not in trace, including adrenaline rushes. This is just my own personal experience though.
-Repay evil with kindness
I must agree that adrenalin rush is very different than vibrations. I've had both once(that I can remember), and both were strong sensations.
Here's the occasions:
The adrenaline rush happened when I was lying on sofa in my grandparents house few years ago. There was this baby, maybe three years old and he went to the dogs meal cup. At this point I wasn't aware that there was any danger, I was just sitting there very relaxed.
What happened next was very fast. I heard the dog growling in a very hostile manner. At that instant I felt and heard a very strong whoosh-sound/sensation, this made me feel incredibly strong and I felt like I didn't have ANY fear whatsoever. I felt that I could have taken any adversary with no fear of hesitation. [}:)] It was an incredible feeling. I immeadiately "flew" to the dog ready to protect the baby. Fortunately the dog was only giving a warning, and nothing else had happened. Only then I came to realise what had happened, it was that fast. The most incredible thing about this was the speed in which I changed from relaxed state to FULL combat readiness. And I mean full, I have never before or after felt that kind of power in me.
The vibrations happened one night when I was dreaming. In the dream I suddenly had a strange feeling that something strange was happening. I then found myself on my bed lying on my side, while the vibrations were buzzing/humming though me. This felt like there were these high voltage power lines attached both to my feet and head and then I was being electrocuted. It didn't hurt, but I really did feel it very strongly. I was fortunate for me that I knew what was happening so I didn't panic. If I didn't know about it, I would have surely thought I was going to die. I managed to get partially out of body, but started dreaming soon(or slipped to astral, hard to say).
So there, my experiences with these phenomenon. Both strong, but very different. To summarise: Adrenaline rush is quick whooosh feeling, which is not electric in nature. Vibrations are steady, ongoing buzzing/humming sensations with very electric nature.
-Pete
An interesting ephiphany occured to me yesterday when I was in a situation that was most uncomfortable. My hands were damp and my heart was pounding andrenalin through my body. I was sitting down, sitting through a lecture. That is where the thoughts entered my mind, "This is exactly like some of the experiences I've had during meditation practices."
The symptoms I had... of pulsing... heart pounding... were classically reminiscent of the symptoms of vibrational exercise that I have experienced on many occassion. Yes, I have had vibrations before... different types of vibe states, actually.
This brings to mind an interesting paradox for the whole subject of energy raising, and/or vibe experience. Is it truly vibe experience, or nothing more than an andrenalin rush that goes mistakingly un-noticed.
Consider this. The aftermath of vibrations and a failed projection is often experienced with symptoms of increased energy, alertness, being awake, heart pounding, and so forth. Andrenalin does the exact same thing. In fact, those symptoms I just described are side-effects of the natural chemical stimulant.
That is not to say I do not believe in energy raising, I just feel that my realization has caused me to question the legitimacy behind the process of energy channeling / energy raising.