scared my *own* self

Had an unreal vocal / guitar practice session earlier this evening. I went places I didn't know I *could* go vocally; oddly (or not) it *frightened* me to realize that "ok, this is IT, this is the same place *really great singers* go; you are at this microsecond EQUAL to any of them so far as a combination of right breathing, phrasing and raw honest unchecked emotion go, this is IT...but can you FIND IT AGAIN once you've stopped? What if you can't get it back?" Then, of course, I must ask myself: "Uh, what's the scientifically quantifiable definition of *a really great singer*, anyway? Isn't 'great singer' a completely subjective matter?" And, now, as if the Universe wants to gently, mischievously mock me, "Killer Queen" comes on 105.9, with the inimitable Freddie Mercury and his 5-octave range doing gymnastics I could never match. Then again, I'm not a gymnast, I'm a wrestler, so it's all good. But does anyone get what I mean, when I say "I transcended what I thought I was, and it scared the shit out of me"?