Bar Hedya was a professional dream interpreter in the Talmudic era, and the Talmud (Berakhot 56a) reveals his scandalous method: he interpreted dreams based not on their content but on whether the person paid him.
Both Abaye and Rava came to Bar Hedya with identical dreams. Abaye paid for his interpretation; Rava did not. To Abaye, Bar Hedya gave favorable readings: "Your goods will multiply, your joy will increase, your household will prosper." To Rava, he gave terrible readings from the same dream symbols: "Your wife will die, your children will suffer, your business will collapse."
And every interpretation came true. Abaye prospered. Rava suffered one calamity after another — exactly as Bar Hedya had predicted.
The Talmud's point is not that Bar Hedya was a fraud — it is that dreams follow interpretation. A dream is raw material; the interpreter shapes its meaning, and that meaning becomes reality. Bar Hedya's power was real, which made his corruption all the more dangerous.
Eventually, Rava discovered what had been happening. In some versions, he found Bar Hedya's notebook, which contained the rule: "For those who pay — favorable. For those who don't — unfavorable." Rava's revenge was swift and terrible. But the lesson endured: words have power. An interpretation, once spoken, reshapes reality. Choose your interpreters carefully — and never assume that the person who tells you your future has your best interests at heart.