I was thinking about the movie The Matrix, in particular the character who asks the agents to erase his recent memory and give him back the artificial life he had in the matrix. He decided he would be happier in that comfortable world than he was knowing the truth of humanity's enslavement. This can apply to all kinds of situations in our lives though. Would you rather know the truth, no matter how depressing or disturbing, than believe in an untruth that keeps you happy?