Truth is often difficult for us mere mortals to accept. For generations, men have enjoyed living a lie rather than accepting the truth.
For example, the Catholic Church insisted that the Earth was the center of the universe for a long time. When Galileo insisted that this view was wrong based on his observations, the Church condemned his view as 'contrary to scripture'. He was tried on heresy, forced to claim he was wrong, and spent the rest of his life imprisoned by the Holy Church...for a lie.
Even now, various 'truths' are wrong...yet to challenge them is to invite condemnation. Jesus was not born on Christmas Day, according to Bible scholars, yet it is an accepted 'truth', despite the fact the holiday was clearly stolen from the pagans.
It's my view that people cling to a fiction because it's more comforting than the truth. Truth requires a brutality of mind, the willingness to accept what is than to cling to what one wants to believe. Truth requires a dedication to objectivity...something many in religion cannot accept because it clashes with 'faith'. and 'belief'. Take for example the current clash between those believers in Evolution and those believers in Creationism. Which is true? How do we know? This question is much harder to define in terms of truth, because there's no way to 'prove' a creator as a fact. And evolution has serious questions to answer before it can become a 'truth'.
Truth isn't 'strange', it just IS. Fiction is the birthplace of a lie. It's that simple.