Holy Roamer. Hello. I understand that you do not believe in the Eucharist as a sacrifice. Catholics DO go directly to God the Father through the priesthood of Christ. That is the heart of the worship going on at the Mass. Catholics believe that Jesus Christ–as an expression of his limitless love and mercy–gave us sinful men and women a share in his universal priesthood. Through baptism we all have receive a share in Jesus’ priesthood so that we can offer thanks, praise, suffering, obedience, worship, joys–IN UNION WITH JESUS CHRIST to God the Father in the Holy Spirit. To those men who are called, Jesus grants a unique, SACRAMENTAL sharing in this ministerial priesthood. Jesus came to earth and forgave sins, healed people, and taught (using, by the way, ‘sacramental’ physical things from the natural world–mud, spit, oil, etc.), etc. Today, Jesus still does forgive sins, heals people, and teaches but he does so in a special way through the priestly ministers. When a priest celebrates the Holy Eucharist, he stands in the person of Christ (in persona Christi)… when we hear the words of institution “This is MY body…This is MY blood…” it is Jesus our Lord pronouncing these words through the priestly minister. The same situation occurs when we hear Jesus makes use of the human earthly minister to hear the sins confessed and to pronounce the merciful words of forgiveness (see Jn 20:21-23). The same happens when a priest annoints the sick (see James 5:13-15). We have one mediator between God and man. His name is Jesus Christ and he works through human instruments to give us his grace.
The Eucharist begins with the Liturgy of the Word, and the Word of God in Sacred Scripture prepares our hearts for the re-presentation sacrifice of Christ–the Passover-like celebration of the entire Paschal mystery (suffering, death, and resurrection of Christ). (See Luke 24:13-35). God bless.