By accepting beliefs for what they are, you can more freely consider the beliefs of others and are more able to shift your perspective and change your beliefs.

Perspective shifting is only possible when you permit a belief to be a belief, an opinion to be an opinion and NOT a truth.

An example of finding possibility through perspective shifting

A long time ago the world was flat. At least this was the perspective of those who were empowered with making such observations or judgements at that time.

Then along came somebody who looked at it differently – 'maybe it is not flat!' Of course, nobody believed this was true until it could be proven.  

With time and perseverance, explorers sailed off into the distance, beyond eyes’ reach, and to much amazement they sailed back again – without falling off the edge!