OA and IL, I'll respond to your posts when I can --
I've known for a while that, even though I am an intense, driven, and passionate person, my energy is generally consistent. I'm not like, say, my Fe-dom extrovert friends, who will be going 90 m/h for part of the day and then spend the rest of the day recuperating alone in a dark corner. Even when I'm really mad, that's probably turning the volume up from 5 to 7 -- only surprising to people who know me, and pretty mild to everyone else.
HOWEVER... even keeping all this in mind, I've never considered myself high-energy. And I wonder if the "serenity" you perceive, comes from detachment, intended to keep myself from fully absorbing all the stress that I likely should be giving myself on a day-to-day basis.
Goodness! You know you're a calming person when the most energetic guy on the planet is calmed by you!!
I'd sort of heard that from people before? I think I'm very calming to people with a lot of nervous energy, e.g. anxiety or stress. But I figured that was by virtue of no-frills Te honesty. I guess I was wrong? It's an "aura" thing?
Come visit me sometime when I'm back in the area, and when your dad hasn't rescheduled your car repair!