Discusses the reasons behind the obligation of lighting candles in honor of Shabbos. Is it an act of honoring the Shabbos, or is it to create a more pleasurable Shabbos?  Also explores how these reasons may have halachic implications, such as the requirement of lighting where you eat vs where you sleep.  We also discuss how this affects candle lighting on Yom Kippur and other Yomim Tovim, and the various minhagim regarding when to light on Yom Tov.