If I walk into a party with a sense of dread, then I am subconsciously looking for evidence of that dread to prove myself right. And it may be true that there are things to dread at the party, but because I’m on high alert for all the dreadfulness, I will conveniently find it and not see anything that might be enjoyable or fun. We are always looking to be proved right. And when we have a need to be right, we will only accept that which substantiates our point of view.