When I die, my body will disintegrate into the various chemicals and molecules that make it up.
But see MM that is just an assumption right? not proof.
I watched a program of a man which is well documented who was a devout atheist, when he was in France on a Lecture about 20 years ago he had a fatal heart attack and was clinically dead, he had an outer body expereince which many people claim to have had,, but anyways when he died he had no vision of a bright light but he did have the most horrific pain from entities who were beating him pulling him literally apart he was in horrible pain a darkness he never had expereinced he yelled and screamed still the pain was there and he was in agony he finally yelled Jesus help me save me and at that point the pain started to go away and he started to see the light needless to say he was brought back to life and he is a Minister today,
I envision this is what you would do also if you experience temporay death as an Atheist.