This image, from Wikipedia (which uses copyright-cleared materials) is "Yom Kippur in the synagogue, painting by Maurycy Gottlieb (1878)".
Today is Yom Kippur, a day for Jewish people of prayer, of atonement, of reflection, and of accepting responsibility for our failures and misdeeds.
We turn our computers and cellphones off today, stop regular work, and unless health conditions preclude, fast. (It isn't too bad: Jewish holidays start at sundown, so you don't go to bed hungry, and at the end of the day, everyone gathers for some serious eating.)
In case you are wondering how this blog entry appears on a holiday when it is inappropriate to even use a computer, Blogger allows you to set the posting ahead of time. So, actually I wrote this entry well before the holiday.