I was talking with a friend some time back about how trauma can hit you when you return to a place of abuse. 

I explained how, when that happens to me, I’ve learned to see it as an encounter with a piece of me that has split from my Self during said trauma and is stuck in this place.  I gather to me the hurt part, the piece that screams as I feel its pain inside of me again. Maybe less painful than the original event, I process through the emotions remaining, in present day at this place, as I hold this piece of me… for as long as it takes.  

Then I see myself rejoining this piece to myself, comforting it as it rejoins the whole, in turn, returning me to a place of more completeness.  

Thanks to TinyBuddha.com for an image that depicts a bit of this idea…