Arnaldur Indriðason said this quote

“ Erlendur didn’t believe in premonitions, visions or dreams, nor reincarnation or karma, he didn’t believe in God although he’d often read the Bible, nor in eternal life or that his conduct in this world would affect whether he went to heaven or hell. He felt that life itself offered a mixture of the two.Then sometimes he experienced this incomprehensible and supernatural de´ja` -vu, experienced time and place as if he’d seen it all before, as if he stepped outside himself, became an onlooker to his own life. There was no way he could explain what it was thathappened or why his mind played tricks on him like this. ”