The only spirits that exist are those on the shelves I pass whilst I'm in the supermarket - with whisky, gin, vodka, tequila etc - on my way to the beer section.
Anything 'Supernatural' doesn't* exist. Otherwise, James Randi's $1 million is yours for the asking! Just go to his JREF, and be prepared to have anything you & your fundie ilk claim subjected to strict independent laboratory tests. After all, Extraordinary claims require extraordinary evidence , do they not? Can't just say 'Because a book says so', nor does 'My word against his' testimony cut it here on Planet Reality - least of all in a court of law. Only hard, solid, physical evidence decides casers - as does convincing the scientific community, as well as the rest of we normal, sane people here on Planet Reality.
In conclusion: An 'afterlife' doesn't* exist. Therefore the 'Soul', a 'God' etc are just concepts: inventions of men.
Deal with it. Otherwise, prove us wrong. And to the satisfaction of we Atheists. Every second you don't, you only serve to prove we Atheists right in what we say.
Computer: 'What is Kiri-Kin-Tha's First Law of Metaphysics?'
Spock (Leonard Nimoy): '"Nothing unreal exists."'
-"Star Trek IV: The Voyage Home"