The Chozeh of Lublin zt'l explained the pasuk (Shmuel 1, 2:7) מוריש ומעשיר ה', "Hashem impoverishes, and makes wealthy," that it can happen in a moment. In one moment, one can become wealthy, and in one moment, one can lose all his money. A wealthy chasid heard this vort from the Chozeh but didn't believe that one could become poor or rich so quickly. On his way home, this chasid passed the home of a priest he knew, and a kelipah (impure spirit) took hold of him, and he went inside and told the priest that he wanted to convert, r”l.
The priest knew this Yid for a long time as a G-d fearing person and didn't believe that the chasid was sincerely interested in converting. "You are playing a prank on me. You will turn me into a fool. I refuse to convert you."
Insisted that He Genuinely Wanted to Convert
But the Yid insisted that he genuinely wanted to convert. The priest told him, "I will agree to your request only if you sign a document that says that if you back out of the conversion, you will give me all of your possessions as a gift."
The Yid signed the document and handed it to the priest. Immediately afterward, he regretted what he did. He couldn't understand how he had done something so foolish. He believed in Hashem and the Torah. Of course, he didn't want to convert!
He quickly left the priest's home, although he knew he would forfeit his wealth. He ran to the Chozeh and told him what occurred. He added, "It happened to me because I didn't believe the rebbe when you said that one can become poor in a moment."
