In Hebrew, the explanation about why Yom Kippur is referred to as an affliction is because of the term an “acceptable day to יהוה.” The idea is derived from the Hebrew phrase יום רצון “yom ratzon,” which translates to the day of Yehovah’s pleasure, will, or intention. Yehovah gave Isaiah words about what he was genuinely looking for. Much later, Yeshua taught the same principles in his “beatitudes." See Matthew 5, Verse 3: Blessed are the poor in spirit, for theirs is the Kingdom of Heaven. The word “poor” in Hebrew comes from the root ענה (anah = ayin nun heh), the same term that Yehovah used in the Hebrew of Isaiah 58:5, "Is it a fast that I have chosen for him, a day of afflictions (becoming spiritually poor) for the soul belonging to him, the man?" Yehovah then goes on to ask a question in the Hebrew of Isaiah 58:5, "Is he called a fast day, the will (intention and pleasure) of (to, towards) יהוה?" The affliction that Yeshua refers to in his beatitudes teaching of Matthew 5:3 appears to be linked to the will, intention, and pleasure of Yehovah's Prophetic Messianic Hope in Isaiah 58:5.