User blog comment:B214/Question and Answers 6/@comment-185.112.105.215-20161019113453/@comment-1359322-20161020001451

It's the same. Why do you think Holy Sword releases light when attacking not some holy energy/power? Even the Holy Lightning and Holy Flames are combinations of thunder/flame with light.

"“It seems it was useless. She tried to reverse the thunder, but what I shot just now was lightning. Thunder and light. The reverse of the light portion wasn’t enough to reverse it all.”"

And you don't really need holy powers to make items like Holy Water or Crosses to work. Remember even the Sutra from Buddhism can affect the Devils. They Sutra aren't instill with holy powers but it still works.

"I’m not lecherous. I’m not a pervert. I’m a being that protects Asia. I’m living with Asia but I can’t think about naughty stuff. Namu namu namu.

Ouch! Then I got a headache! Oh yeah! Why am I praying!? I’m a Devil! I will take damage if I pray! I almost terminated myself on my own!"

Even in Kyoto:

"Since most of Kyoto's sights are temples, or in other words, Kyoto is full of sites heavy in spiritual power, this normally caused all sorts of inconveniences for devils. After all, shrines and temples are normally taboo for devils. However, devils can move freely using this pass which was issued by existences (like onmyoji and youkai) from the Kyoto office in charge of affairs there. Of course, a valid reason was required beforehand."