Maligning Eretz Yisroel
Excerpt from "Yearning for the Holy Land: Hasidic Tales of Israel":
Once Rebbe Yaakov Shimshon of Shepetovka visited Eretz Yisroel for a time. After his stay, he decided to return to his home in order to move his family to Eretz Yisroel.
On the way home, he stopped off at an inn. When he saw himself in the mirror there, he noticed that the long and arduous journey had made him appear gaunt and pale.
He said to himself, "If I return this way after my stay in Eretz Yisroel, my friends will think that the country is unhealthy and I will thus inadvertently, Heaven forbid, be maligning it."
What did he do? He stayed at the inn for a number of days, eating and drinking properly until his appearance reverted back to its normal, healthy state. When he returned to his home, people thought he looked better than when he had left, and all felt how goodly a land it was.