The holidays have a knack for bringing up pain, even if only in the renewed awareness of those that we have lost. I read a book recently by Sharon Anne Klingler that has been helping me prepare for my first marathon, both physically and emotionally.
The book is called "POWER WORDS" and the author gives us Power Words, Trigger Words and Uplifting Words, to be used according to our need. Inspired by this book I stumbled upon one for myself that has been very helpful to me.
I wrote an article about it for the Huffington Post. I hope it comforts you in some way: http://huff.to/1c1SiMo.