John 6:47-51 WEB
Most certainly, I tell you, he who believes in me has eternal life.  I am the bread of life.  Your fathers ate the manna in the wilderness, and they died.  This is the bread which comes down out of heaven, that anyone may eat of it and not die.  I am the living bread which came down out of heaven. If anyone eats of this bread, he will live forever. Yes, the bread which I will give for the life of the world is my flesh.”
Eating the flesh of Christ is a metaphor. It simply means receiving from Christ. When we receive salvation, grace, mercy, or anything else from Jesus, we are metaphorically eating the flesh of Christ (1 Cor 11:24). The saying also nods to the coming crucifixion. However, we are looking at the metaphor, not the grounding reality of Jesus’ statement. So, the metaphor of eating Christ simply means receiving from Jesus is what gives us life. Jesus is the Bread of Life, when we receive of him, we inherit eternal life. So, here is the question, if Christian means little Christ are we to give our flesh?
Do we suffer to bless those who would come to Christ? (Rom 8:17, 23) According to Romans chapter 8, yes, we do suffer as Christ suffered. And that suffering has value. When we lay down our lives, we can then be remade in Christ’s likeness. (1 Cor 15:49) It is a holy thing to suffer for Christ (1 The 1:6, Heb 12:10). More, holiness allows us to be anointed to bring others to Christ (Mark 13:11). When Jesus died and ascended, he released the Holy Spirit (John 20:22). Christ was holy because he gave his life away (Col 1:22). In his complete giving of himself for the will of God, Jesus is the holiest (Heb 10:19-20). In giving his life away he has saved millions. We must be ready should God ask us for our comfort, ease, or luxury. We must be ready to imitate our Savior and give others access to the Bread of Life.
Lord Jesus, you have given me so many blessings. Please help me let go of the things you ask me to give up. Please help me love others so much that I will give of myself to see them whole and reconciled to God. In Jesus’ name, I pray, amen.