Pray for a deep peace to overwhelm you and yours in His Holy name.
When God did take my mother home which I had dreaded my whole life, I thought I'd fall to pieces because I am the youngest of 6 and had a lot of one-on-one time with my parents. Of course, I grieved, but with both my mother and father, I was left with the largest sense of gratitude to God--it totally overwhelmed me instead. They are in heaven now with God and are having the greatest time, I have no doubt. My priest told me that gratitude is a very powerful tool against grief and God gave it to me big time.