If the lost have only eternal nothingness to look forward to, I don’t see how that could be something for them to fear and propel them to saving faith in Christ.
The body is dead. There is no “rejoining” of the body to the spirit. It’s gone. Same is true for the believer. The believer gets a new body. The non-believer is destroyed. It’s why the bible calls it the second death.
The bible uses the words “death” or “die” a LOT to describe the fate of the lost. Starting in Genesis.
I don’t agree with your approach, but I already hinted that I don’t want to be a part of hijacking the audience of this Mary/children theme. I guess I should have saved my comments for whenever you bring it up again. Let me respectfully suggest that you find an appropriate source embodying this concept and post it as a primary nucleus.