St. Paul in his letter to the Corinthians deals with what we believe about the resurrection and the body. Some mistakenly think that because he says it will be a spiritual body, that he is describing something like a ghost. Nothing could be farther from the truth.
“We believe in the true resurrection of this flesh that we now possess” (Council of Lyons II)
The sequence is simple:
The flesh was created by God and was good from the beginning.
Because of sin it became corruptible.
The word became flesh.
Through his death and resurrection he made the corruptible once more incorruptible.
At death our body is separated from our soul, but not forever.
By death the soul is separated from the body, but in the resurrection God will give incorruptible life to our body, transformed by reunion with our soul. Just as Christ is risen and lives for ever, so all of us will rise at the last day. (Catechism # 1016)
Jesus did not just save our souls but our bodies as well. What Adam damaged by sin, Christ more than restored.