On the Reality of Ghosts

There is a picture posted on the Internet in "Odd News" today that shows a ghost, along with the question, 'what do you think it is?'
Someone posted the opinion that it was nothing but a collection of physical effects and some sort of mass delusion. Following is my reply on said opinion:

Given that it is a spirit (= ghost) that makes a body ‘alive’, and its leaving a body that makes said body ‘dead’, it is the height of arrogance and sophomorism to claim there is no such thing as a ghost.
As a Sun Dancer, therefore a Traditional spiritual person of my ITI people, the Lakota, I am best qualified to speak on such things than you are. You need education to end your ignorance, takoszja, from which stem your arrogance and sophomorism.
Atheism has its place, but not as authority on things spiritual. It’s likelier to be a ghost than it is to be a result of some chance coming-together of various effects. There is no such thing as accidental coincidence in the universe, takoszja - there is only the fact of incidents coinciding in time.