Optimism is a magnet that bring joy and peace to you.  If you look at life in a positive fashion, good things and good people and good experiences are bound tobe drawn to you.

You will be blind to undesirable events as the good outweighs the do called bad incidents

Keeping busy by posively thinking of wonderful possobiliries and making optimism a way of life can restore your faith in yourself as you appreciate and embrace good things and learn to neglect or ignore no do happy situations