This is for Ritona, since she's so cool. :)
This passage is taken from Ephesian 6:12, which says, "For we do not wrestle against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this age,[c] against spiritual hosts of wickedness in the heavenly places."
'Twere it possible, this would be another entry for a contest. I just finished watching the series and would highly recommend that you all see it! ('Tis only 13 episodes or something.)
Anyway, if you had seen the series, you'd would know that the two girls are exorcists, both of whom have inherited such responsibilities from their family. So they fight your typical evil demons and spirits. Due to family losses, the two become close like sisters. But something goes awry I won't spoil it for ya, and the two end up fighting each other...
I chose this series with this passage because the verse speaks of our warfare as being one of the spiritual not the physical. We don't fight each other with physical blows and punches, but we have a spiritual warfare to engage in.