Great advice so far. Try and take it in stride and have faith that he will regain all his growth, soon.
Have you tried praying with him? Sometimes taking deep, slow, rhythic breaths can supercharge those prayers. Do some yourself and make some comments to your DS and see what he comes up with.
For my son, when my mom passed, there was the extra pain that my son seemed to feel that my mom was the most 'like him' in the family, and that without her on Earth, that he had more to carry alone. I could see some truth in that. I try to remind my son that he has every good moment in the past that he ever had with her completely intact and independent of her current location.
Hope that helps,
Grinity
