Assume the world is rational

What will happen? If you can do this, the following benefits will accrue:

• Your energies will be devoted to finding out 'why'

In other words, frustration will be replaced by curiosity.

• You will give up labeling people and events as 'good', 'bad', 'desirable' and 'undesirable'.

In other words, you will truly suspend judgment.

• You will accept that many things are hard (if not impossible) for you to understand
  

In other words, you will become less and less defensive and learn to say 'I don't know'.

This requires you to show patience with yourself, more than showing patience with the situation or the person frustrating you.