Genuine Wonder or Optical Illusion ?

Art: Jacek Yerka

"Provide a wonder for yourselves" [Va'iera 7:9]

Why, asked R' Elimelech of Lizhensk, would Pharoah ask Moshe to "provide a wonder for yourselves"?  Since Pharoah was the one who wanted proof of Moshe's legitimacy, would it not have made more sense for him to say "Provide a wonder for me"?

The difference, answered the Rebbe, between a genuine wonder and one which is no more than an optical illusion is that the illusion amazes only those who witness it.  However, the one who performs the feat is not impressed in the least, since he knows that it was no more than a delusion.  A genuine wonder, on the other hand, amazes not only its spectators, but even the tzaddik who performs it.

This, then, was Pharoah's intention when he said: "Provide a wonder for yourselves" - Provide us with a true wonder, one that will not only dazzle us but will even make an impression upon yourselves."

Source: Rabbi Y. Bronstein