It is more than a mere cliche to say that perception is reality. Expectation is also reality. Believing a better world is real and possible makes this world better, if for no other reason than that positive, optimistic people are more pleasant to be around.
Why I Don’t Follow the News
Isaac Morehouse
1109

For some, this is a fact that requires a lifetime of study. We learn and know the cliche is true, but often we get distracted by life, forget the cliche, and must relearn. Creating our own reality of pleasant optimism is far better than…reality.