Yom Kippur (יום כיפור) is the holiest day of the year for Jews. [Note 13] Its central theme is atonement and reconciliation. This is accomplished through prayer and complete fasting—including abstinence from all food and drink (including water)—by all healthy adults. [Note 14] Bathing, wearing of perfume or cologne, wearing of leather shoes, and sexual relations are some of the other prohibitions on Yom Kippur—all them designed to ensure one’s attention is completely and absolutely focused on the quest for atonement with God. Yom Kippur is also unique among holidays as having work-related restrictions identical to those of Shabbat. The fast and other prohibitions commence on 10 Tishrei at sunset—sunset being the beginning of the day in Jewish tradition.