hello wondering, dirtfarmer here
I based my answer on personal experience. I had a son born severely handicapped. He lived 12 years 8 months and 3 days. He never spoke a word. My wife and I had to do every thing from feeding to changing his diapers. The one thing that I do know is that God had a purpose for him and I believed that he fulfilled it. The reason that I say this is because at his funeral there was about 700 to 800 people at his funeral, there was standing room only. My wife and I only knew about half of them. We found out after his service, there was a school bud driver that lost her job because she can to his service.
As I stated earlier he was 12 years 8 mo and 3 days old. 12 is the number for divine completion. I believe that he completed the purpose that God had for him. 8 is the number for new beginnings. I believe that he has a new beginning since he has passed away. 3 is the number for the divine completeness, I believe that he is resting with Jesus now.
My pastor and I conducted the service and one thing that my pastor said we had put on his grave stone: "This is not goodbye, but see you later."
We, my wife and I had sorrow because of his death, but we had joy in our hearts because we believed he fulfilled the purpose that had for him, and he allowed us to share in that purpose as his parents.