The Day of Atonement, or Yom Kippur, is a day unlike any other. There is more written in Scripture about this day than any of the other annual biblical feast days. This was the one day the High Priest could enter the Holy of Holies within the Temple. The Temple was central to the worship of God by Israel.
However, the Temple was destroyed around 70 CE/AD. We do not make pilgrimage to the Temple any longer. We now have something better.
God, through Jesus Christ, in an act of loving kindness, has reconciled us to Him, granted us repentance, and allows us to meet with Him whenever and where ever we need Him. We can now have direct and intimate access to God, now and every day, because of the sacrifice of Jesus Christ, our great High Priest and Savior.