I am embarrassed to admit that, along with many others, my initial reaction to such noises is often impatience and annoyance rather than empathy. My friend Rabbi Zalman Schachter-Shalomi, known throughout the Jewish world as "Reb Zalman," suggests that whenever we hear the sound of a passing ambulance we offer a prayer that the ambulances arrive in time. Similarly, whenever our sense of calm is interrupted by fire trucks, we should pray to God that the trucks arrive in time to save the endangered people and home. We should also pray that no firefighter be injured. And when we hear police sirens, we should implore God that the police respond in time to the emergency.

Reb Zalman's suggestion is profound. By accustoming ourselves to uttering a prayer at the very moment we feel unjustly annoyed, we become better, more loving people. The very act of praying motivates us to empathize with those who are suffering and in need of our prayers. Furthermore, imagine how encouraging it would be for those being rushed to a hospital to know that hundreds of people who hear the ambulance sirens are praying for their recovery.

Speaking to a Jewish group once in Baltimore, I shared Reb Zalman's suggestion. After my talk, several people commented on how moved they were by this idea, but one woman seemed particularly emotional when she spoke of this suggestion. When she was ten, she told me, she had been awakened from a deep sleep by passing fire trucks. It was almost one in the morning, and now, twenty-five years later, she still remembered her first response: it was so unfair that her sleep had been ruined.

The next morning she learned that her closest friend, a girl who lived only a few blocks away, had died in the fire. Ever since, she told me, whenever she hears fire trucks go by, she prays that they arrive at their destination in time.