Is this a spiritual question? If a person dies, they are dead. There is no more. The 'light' is extinguished. However, Some people want to believe in more. (meaning after they have died) This is the concept of religion and heaven and hell. Who is to say what is right and wrong? We all have our beliefs. There is the belief that our 'spirit' lives on. How? Where? That is up for us to decide, and believe in. But for the corporeal body, life ends when the last beat of our heart and our last breath leaves our body.
If you are a saved Christian accepting Jesus as your Lord and Savior knowing that he died for our sins that we could have everlasting life THEN when you die you shed this old body for a new body that can live with The Lord in his mansions in Heaven.