"The mantra I would like you to practice is, 'Are you sure?' Are you sure of your perceptions? Don’t stick to that feeling, that perception, that belief, that impression. You will avoid a lot of suffering in the future if you are open to reexamine and explore each of your views.
… In each of us there is a river of perceptions flowing day and night. To meditate means to sit on the bank of the river and observe all perceptions. With the energy of mindfulness, we can see the nature of our perceptions and untie the knots that bind us to our wrong perceptions. All our suffering has its roots in our wrong perceptions, so please practice the mantra, 'Are you sure?' Always refer to it and try to look more and more deeply. Our views can be more or less wrong. When we have true understanding, we transcend all kinds of views, even our views of the Four Noble Truths."
So often I think, "Yes, of course! It's so obvious." But then I am quickly reminded by how fallible I am. Just a day after I'd heard this story I had a disagreement with my husband. And while I stewed about how unjust it all was and how terribly wrong he was about it, a little voice whispered, "Are you sure?"