A Chassid asked the Seer of Lublin: To the words in the Mishnah: Man should thank G-d for evil and praise him, the Talmud adds: With joy and a tranquil heart. How can that be? The tzaddik could hear that the question sprang from a troubled heart. You do not understand the Talmud, he said, And I do not understand even the Mishnah. For is there really any evil in the world?

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