Talk:Darkria/@comment-8198649-20131202031529/@comment-26480939-20160826031426

I'm not the author, but I believe so. The "I hate good my enemy is pure/She hates dark and lights its door/My darkness is weak compared to her,/But at night I can over take her," part describes Cresselia, who is Darkrai's polar opposite, bringing the light of the full moon and peaceful dreams to counter Darkrai's new moon and nightmares.

Although, this does seem to miss the point that the nightmares that Darkrai brings are naught but a defensive mechanism to drive away intruders. It doesn't actively seek to bring harm. Think of it like this: It's like having something that you have no control over. Like say, you can read minds but can't control when it happens. See this for more: Darkrai (Bulbapedia link)