Yom Kippur (YAHM KIP-POOR), the Day of Atonement is the most solemn day in the Jewish calendar.
Fasting begins at sunset on the day before Yom Kippur. For 24 hours observant Jews fast, attend synagogue services and say special prayers. A special 24 hour candle called a Yahrzeit is lit in memory of departed family members.
I come from a non-observant family, but I lived in a predominantly Jewish neighborhood in the Bronx as a kid. My chief memories of the holiday were watching the old people, dressed in their best clothing, sitting in the park across the street from my house in between services.
That and my mother making a turkey dinner on the holiday one year. As I've said before, she's the atheist in the family. On the other hand, my Orthodox raised father didn't protest this a bit..........
You can find more details of the holiday at http://www.jewfaq.org/holiday4.htm. But since I come from such a non-observant family, I'm being contrary. On this serious day, I bring you Jewish versions of the light bulb joke. Both of these jokes apparently got onto the Internet from rabbis' sermons, though I'm sure they were not from their Yom Kippur services:
Q: How many Jewish mothers does it take to change a lightbulb?
A: None. "Don't worry, I'll be fine. I'll just sit here in the dark................."
And dads get their turn too, though my father (a retired optometrist) does know a fair bit about tools:
Q: How many Jewish fathers does it take to change a light bulb?
A: "What do you mean by "changing"? You mean light bulbs need to be changed?"
Until next time, abei gezunt.............