Here's a pretty bizarre case that has a chance of working; depending on how willing you are to it. And I think it will make more sense of things, and snap this topic back on rails.
If you take advantage of the placebo effect on yourself (somehow, there is a way to get around your own mindset), you can actually evolve either your psychological, or physiological behavior.
In some cases, you can become a human ant (a common result in my case; freakish strength at times; provided I don't strain myself.), and out-perform even the burliest of people; or at least, have a bit more endurance/effort to spend. And in the case of psychology, you can trick yourself into longer time frames (time awake for a project, let's say), or to react completely differently to a given situation.
If you were to make the right kinds of New Year's Resolutions, let's say, and make it in a way that can adjust your attitude, and keep it in that way; while you're actually lying to yourself at the time, it could eventually take on a character-changing effect, and you become the lie, you
become the mask.
A good example: A New Year's resolution, I have tested such a thing on myself. It was more of a wise collection of quotes, both equally inspiring, and badass if said in the right order; and it forms a pretty good statement as well.
In this order: "I reject your reality, and substitute my own." "I know what the fuck I'm doing!" "Just who the hell do you think I am?"
Translation: "Who cares what you believe in, I believe in what I know; and what I know is what I'm doing. I'm not the person you previously knew me as." --My New Year's Resolution Independence Creed Translation (for 2009, and for the rest of my life)
Previously a more timid person last year; using that placebo of a resolution on myself for even the first 3 months of the year nearly did a 180 on my personality, which I had for eons (and was thoroughly sick of it). I liked the change; thus, I invoked the 'becoming the mask' trope to taking effect (along with '
Growing a Beard'), thanks to a placebo. I've never taken more risks (and believed I had a higher chance of succeeding) in a single year than when I applied that. To tell the truth, my odds really sucked. Especially with surfing; and it's now a sport I'm more willing to take on nowadays (I actually gained more skill, regardless of wiping out rather constantly; I'm not half-bad nowadays.).
What can I say, the technique works. But it requires knowing your own psychology well enough to pull a
Xanatos Roulette on yourself to achieve an active placebo.