Siman 157

(7.) Before he left on the aforementioned journey he clapped his hands together in joy and said: "Today a new thing begins." And then he said: "We are like one who plays music, and the world dances — and one who does not understand and hear the melody, it is a wonder in his eyes why they run after him and why they dance. Thus it is a wonder in the eyes of the world why you run after me." "When I return from my path I will be able to play music and you will be able to dance." And afterwards he traveled to Navoritch, and was in Zaslav, and in Ostrog, and in Dubna, and in Brod and yet other places. And he disguised himself and they did not know who he was. And he was in the house of every one of the great merchants of Brod, and he had dealings with each and every one. When he entered Brod all the city came out toward him. [Explanation: they did not at all intend to honor him — for they did not know him at all — rather it happened thus coincidentally from Hashem Yisburach.] "And I heard the sound of the clamor of their desires — that they desire and cry out for money etc." — that there was a great cry from their desires. At that same time, on the eve of Shavuos, his wife passed away. And we gathered to him for the Festival of Shavuos and he said us the Torah as mentioned above.