Using the "armor of light”

[Vestige]

  If we want the armor of light, then, likewise, we must work for it. 

Regarding the 'armor of light'.
As I've posted above there's something that is similar to this conception of 'armor of light', it's called Prana Shield.
By default every being have one, no need to do anything.

The Prana Shield has a correlation with one's emotion.
It only works when the practitioner is in high vibration state (calm, grateful, happy, peaceful).
And it only works against those who are in low vibration state (anger, hatred, panic, fearful etc..)

Prana Shield will not work as 'defensive measure' against others who are also in high vibration state, if the prana being directed towards other high vibrational entity it will be felt as comforting and healing energy by the recipient. 
From the video I've posted above it can clearly be seen..

Trained practitioner understand this very well and they also can better direct the prana much better than the untrained, plus the strength of the prana from trained practitioner is higher than the untrained.

The untrained although they do possess the pranic shield, they might not understand how it works.
Thus they easily vibrating to the low vibration state by feeling panic, anger or fearful facing the aggression and agitation from the negative entities (human or non human)

I appreciate this distinction or, clarification that you make here: 
The untrained although they do possess the pranic shield, they might not understand how it works.
With the example of running the marathon, too, it's a good point to make that we do not train weekly and are 'rewarded' with the strong legs at the very end of the training--we get better every day.  So, I prefer your phrasing.  It captures the inchoate nature of the pranic shield, the armor of light, and many (and, all?) resources which we access while traveling through creation.

POSTED BY QUINCUNX - 9 HOURS AGO
(Today, 03:11 AM)Vestige Wrote:
I would opine

Thank you for making me use a dictionary more often. There is an app I sometimes use to practice for the GRE that I probably will never take. It's called "GRE Vocabulary Flashcards" by Magoosh. I think you would do very well on that app.

Ha, thank you, my friend.  I do enjoy playing around with language.
Would you be surprised to hear that I once read a dictionary?  I. Moyer Hunsberger's Quintessential Dictionary, when I was in sixth grade.  My friends all made fun of me for reading it, but I have no acrimony toward them for it.