Speed -

If quantum mechanics is right and we have created this as a collective illusion, then we are merely avatars created by energy.

This means that your son didn't die in the conventional sense and actually became part of the energy in something new.

Some people believe that this is a spiritual journey and in that case some things are predetermined as a lesson or an experience that is a part of your soul evolution. This would also imply that your son did not die but was a spirit that was a part of your journey and the the lesson you came to learn and is therefore reborn into the new people and experiences you will experience in the future. No one dies if the world is made up of energy.

He is the portal. He is the life force that you carry in you.