(CNN) -- Call it what you will -- providence, fate or simply a stroke of incredibly good luck -- Colorado shooting victim Petra Anderson has some of it. 

Anderson, 22, sustained multiple gunshot wounds in the movie theater rampage last week. Three shotgun pellets hit her arm, and one went through her nose into her brain. 

The head injury could have been fatal, but thanks in part to a brain abnormality she never knew she had, Anderson is on her way to a full recovery, according to her pastor. 

He said there's just one way to describe what happened: "a miracle." 

Remembering the victims 

"The doctor explains that Petra's brain has had from birth a small 'defect' in it. It is a tiny channel of fluid running through her skull, like a tiny vein through marble, or a small hole in an oak board, winding from front to rear," Brad Strait, senior pastor at Cherry Creek Presbyterian Church in Englewood, Colorado, wrote on his blog this week. 

"Like a marble through a small tube, the defect channels the bullet from Petra's nose through her brain. It turns slightly several times, and comes to rest at the rear of her brain. And in the process, the bullet misses all the vital areas of the brain. In many ways, it almost misses the brain itself," he said. 

"In Christianity we call it prevenient grace: God working ahead of time for a particular event in the future. It's just like the God I follow to plan the route of a bullet through a brain long before Batman ever rises. Twenty-two years before," Strait wrote. 
What is his example for that?
Batman