Denial is bliss, it helps us in being stable, it protects us from experiencing pain (atleast at superficial level), but…
Denial is bliss only till a point where something adverse happens!
Example, a person is ignoring that his room is on fire. He is happily watching TV show. Suddenly when he starts burning, his TV catches fire and blasts, that is how adverse event happens. If he would have had capacity to feel pain that his room is on fire, he would have got opportunity to stop fire and protect all objects in his room and also protect his own life!
So, an adverse event follows the denial. Since event happens in click, person fails in getting insight that event occured because of his/her denial. He/she will start attributing to fate, God, luck, etc!