1 Corinthians 15 contains a wealth of information and is probably the most frank discussion in all of Scripture regarding the nature of resurrection. We are told that as we have a natural body, we shall also have a spiritual body. A day is coming when we will have much more in common with angels than we presently share. Be that as it may, we are still spirits that live in physical bodies. This does not make our spirits unsubstantial. Our spirits have shape and form and can impact the physical realm.