"…they may all be one, … Father, … that they also may be in us." (John 17:21) “I am the vine, you are the branches, …” “Unless you eat the flesh of the Son of Man and drink his blood, you do not have life within you.” Unity within Christ has such power of life! “Come after me!” is an affirmative invitation. Let’s transform our life into that of Christ. Through the “Word”, our mind becomes that of Christ. Through the “Holy Eucharist”, our bodies, on returning back to the earth, will become the “holy body” of the earth. “The new heaven and the new earth” as revealed in the Revelation are so obvious that need no explanation. “Living in unity” is the life of the Holy Trinity. It is a life of “mutual love” and “harmony”. The basis of harmony between people depends not only on feelings. This is because all earthly matters, as described in an old Chinese saying, are “abstract and abstract, everything is abstract and not concrete.” So, we have to rely on “God’s mercy and love”. “It was not you who chose me, but I who chose you.” ”Unity within the Lord” is a novel way of living. It is living in God’s will continuously without interruption, especially in fulfilling the commandment of love : “love one another as I have loved you.”