The spirit world and the material world are the same world. They are the two sides of the same coin. Body and soul are not two separate substances.
What is matter? What is an electron, a particle, or a wave? What does it consist of? What is a quark? What does a quark consist of? Vibrating strings? What is dark matter?
Why is it so hard for you to see that matter is as mysterious as a spirit? What is a spirit made of?
You have no idea of what will happen to you after your death. Maybe you will live on in some other physical form. Maybe you will be resurrected in another universe. Maybe you simply dissolve and disappear forever. You don't know.
Life is a mystery; death is a mystery, everything is a mystery.
