I wouldn't call it the perfect Lucid Dreamer but people can definitely achieve the things you describe and they don't have to be Spiritual or even deeply into Meditation or anything like that, it also doesn't have to take decades of practice.
I can Lucid Dream every night I try! (a bold claim I know).
95% of the Lucid's are truly detailed and vivid!
I pretty much always have complete waking consciousness, full control over my actions and a lot of control over the Dream, though sometimes not as much as others (like Sivason says) in the occasional Lucid I can't even fly!
My average Lucid Dream has gone up from around 1-2 minutes in the beginning to around 10-15 minutes now, which in a Lucid is longer than it sounds.
I still have a way to go on this front though, as I'd like to be getting 20 minutes+ on a regular basis.

I only started trying to Lucid Dream on the day I joined this Forum, so coming up to 2 years now.
I had never done any Mediation or anything like that, though have been using simple Meditation breathing techniques for a while now to help get Lucid.
I had also had a handful of Lucid Dreams as a child, but always woke within a minute at most.

I believe achieving nightly Lucid Dreams with great clarity and control boils down to a few things....
Having excellent Dream recall, by this I mean remembering 4+ Vivid, or at least quite Vivid Dreams a night.
A strong determination to achieve.
Finding exactly what techniques work best for you.
Lastly, Luck! By that I mean some degree of Natural ability.
from what I've read, some people just take to Lucid Dreaming like a Duck to Water, where others can be truly dedicated and still struggle.

That's not to say that people without these things can't become regular Lucid Dreamers though, they definitely can!
Just in my opinion what greatly helps one archive Lucidity on a nightly basis!