John 6 I am the Bread of Life

John 6:52–59 HOW DO WE EAT THE FLESH AND DRINK THE BLOOD OF CHRIST?

"To eat the flesh and drink the blood of Christ was and is to believe in and accept Him as the literal Son of God and Savior of the world, and to obey His commandments. By these means only may the Spirit of God become an abiding part of man's individual being, even as the substance of the food he eats is assimilated with the tissues of his body (James E. Talmage, Jesus the Christ: A Study of the Messiah and His Mission According to Holy Scriptures Both Ancient and Modern [Salt Lake City: Deseret Book Co., 1983], 317).

Elder McConkie

“The bread of life, of life eternal, living bread, the bread which came down from heaven—such is the language he uses to describe himself; and since his body is one of flesh and blood, to eat the heavensent bread, men must eat his flesh, the flesh he ‘will give for the life of the world,’ the flesh to be broken in his infinite and eternal atoning sacrifice. Knowing what Jesus’ words meant but being wholly unable to understand how they applied to salvation and to the works they must do to gain eternal life, the Jews ‘strove among themselves.’ . . .
“To eat the flesh and drink the blood of the Son of God is, first, to accept him in the most literal and full sense, with no reservation whatever, as the personal offspring in the flesh of the Eternal Father; and, secondly, it is to keep the commandments of the Son by accepting his gospel, joining his Church, and enduring in obedience and righteousness unto the end. Those who by this course eat his flesh and drink his blood shall have eternal life, meaning exaltation in the highest heaven of the celestial world. Speaking of ancient Israel, for instance, Paul says: They ‘did all eat the same spiritual meat; And did all drink the same spiritual drink: for they drank of that spiritual Rock that followed them: and that Rock was Christ.’ (1 Cor. 10:3–4.)” (Mortal Messiah, 2:377–79).