As a Christian, I definitely believe that it is true. True in a way that it is a satan's dark angel ruining our belief in God. In Bible when a person die, they return to ground, and their soul will not linger in this world,but the breath of life will return to God which came from God. We can found in Eclessiastes that those who are dead, their spirit has no more feelings, thoughts and any other emotions, so it has no remembrance of it's life on this earth. It That is why God said that it is an abomination to call on spirits. Which the things you call in not spirit of anyone's love ones but the devil himself or his angels.