In order to save a spirit that are dying, you must preach the word of life to that 'physical body.'
When the physical body listens to the word and takes action, the spirit comes back to life.
You must preach the word of truth and love, then you can save a spirit that is dead.
You must love the Holy Son, then lives will stick to the Holy Son. They will be grafted with the resin of love.
Therefore, preach His gospel! You must preach then people are able to know His love.