The one who created man said to him (Adam) "for you are dust and you will return to dust" Dust, dust are elements of the earth. We are created from the same elements. Where we came from, we will go there. However, if Adam had not sinned, he would have lived forever on Earth! And his descendants too.
Do you want a truthful answer, or a hopeful answer?) I personally prefer the truth. And I'll tell it to you. NOTHING. What you will manage in this life: children, creativity, good deeds, bad deeds, good impressions, bad impressions .... etc. And after death, NOTHING awaits us all.
The process called life ends and the existence of a person ends. About research - it has been investigated and established that all processes that are responsible for our personality, our consciousness, our "I" are (and proceed) in the nervous system, in the brain. After death, all elements of the nervous system (nerve cells, etc.) are destroyed, destroyed. Processes stop and information is lost, irretrievably and forever.
It is not easy to accept, I always want to believe that we will continue to live somewhere else in a different way, but still we should accept it. Although this is not necessary - you still will not have time to be disappointed ("break off"), if until the last day you believe in one of the forms of "life after death". Maybe it will really be easier for someone to live like this.
Here it is for each his own, for someone the main thing is that his picture of the world (his worldview) is "beautiful", pleasant, and inspiring. And for someone it is more important to know how the world "in fact" works, and strives to ensure that his picture of the world is as close as possible to the true one, corresponding to the real state of affairs. And it was logically, reasonably based on objectively existing, verified (and most importantly, verified) premises.
Science says that after death, all cells of the organism of a living being die, including the death of nerve cells. The brain is dying. And this means that a person is no longer capable of not only making any meaningful actions, but also of any actions in general. Please accept this.