I have a daughter that is 6 and a baby boy on the way in June. There are nights I can't sleep just worrying about what MIGHT happen, what life would be like without my loved ones. It's torture and I don't know why my head goes there, but one thing is for sure, I hold 'em a little tighter the next morning...
I can only imagine what you just went through and hopefully will never know. I can, however, relate with your experience regarding the way archery calms the mind. In fact, just yesterday I was reflecting on how my best shooting occurs ONLY when there are no thoughts going through my head, especially second-guessing where my bow arm comes up when I anchor. The only thought that seems to help is the one reminding me to breath and pick a spot.
God speed to your son's recovery, and my you be flinging arrows side by side in no time!