Apology of ghosts

The book “Apology of Ghosts” does not study urban and rustic folklore, stories are not retold or parody. “Apology of ghosts” is designed to “justify” ghosts by analyzing the hypotheses and evidence of the sages of China, India, ancient Greece and Rome, Christian saints and teachers, magicians and esoterics, pillars of philosophy and psychoanalysis, literary classics, etc. Who sees, who refuses to see ghosts ? What are people guided in their acceptance or rejection?
The archaic features of ghostly phenomena are described: their attachment to nature, to specific places, to graves, for night, as well as the effects of presence - various sounds, dead silence, animal reaction, etc. The author shows how one mysterious phenomenon comes from another, also requiring study and, unlike the first, thoroughly studied, but remaining a mystery