You are right the purpose of this feast is to distract people from the true Divine Mercy wich is our Passover , trough grace , God`s gift .The Divine Mercy is God`s great gift to us , Jesus Christ , The Way , the Salvation wich comes from grace so that no one elate , trought God great mercy and love . He already gave Himself as sacrifice once for all , in him is accomplish all law , there is no need for another sacrifice . Cause He is without sin , and the High Priest , the Lamb of God , wich enter somewere beyond the saint of Saint and it is there forever in the heavens . This thing is to minimize the offering of Jesus and to elate and promote sins because trought "this ceremony" people "benefit" of a "special grace" . To say that the offering of Jesus was not perfect and to minimize the role of Jesus Christ , and that His sacrifice was not enough to wash the sins of all world , that is why He needs to be slaughtered again and again . Everyone who drinks the blood of the Lamb and eats the flesh of the Lamb stays in God and God in Him . Jesus said : Father desires worshipers in true and spirit . "I desire mercy and not born sacrifice" ; also it is written in the psalms and hebrews that the biggest sacrifice for our atonement is Jesus Christ once for all , and it says burn offering and sacrifice you did not desire , then I said : Here I am . In the head of the scroll is written about me . God wants mercy more than burnt offerings , and the knowing of God before sacrifice . To love God and our neighbours with all our heart . What you want people to do to you do them yourself . And this is the eternal life that they know you the one and only God , and Jesus God wich you has sent . Who doesn`t love does not know God for God is Love . Who doesn`t love his brother wich he can see , how can he love God wich he can`t see . This is from John and 1John , reproduced with my words .