The eye of the beholder
Wisdom! Let us attend.
“Father, why are you sad?” – a pupil asked the elder.
“People have forgotten how to see truth. Three times I showed three of you white clothes with a dirty stain. And I asked, ‘What do you see?’ ‘A dirty stain,’ said every one of you.
And no one thought to answer – a white robe.“
Hat-tip to Father Milovan.