"Who is my mother? Who are my brothers?" (Matt 12:48) Jesus stretching out his hand toward his disciples, he said, "Here are my mother and my brothers. For whoever does the will of my heavenly Father is my brother, and sister, and mother." (Matt 12:49-50) After hearing such words from Jesus, it would definitely arouse a sense of dismay from his own cousins, for the feeling of the intimacy of their kinship seemed disappeared. Jesus’ mother Mary got used to the meaning behind Jesus’ saying: All matters should be based firstly on the will of our heavenly father. When Jesus was 12, after the feast of Passover, he remained behind in Jerusalem without notifying his parents on their way home. Mary was at great anxiety looking all over for little Jesus, and finally found him in the temple after 3 days. It has to be embraced within God’s great love that the following conversations between Mary and Jesus could be exchanged in such restful state of peace: "Son, why have you done this to us? Your father and I have been looking for you with great anxiety." And Jesus said to them, "Why were you looking for me? Did you not know that I must be in my Father's house?" (Luke 2:48-49) Don’t you notice that Jesus’ answers of “Did you not know that I must be in my Father's house?" and “For whoever does the will of my heavenly Father is my brother, and sister, and mother." had resembled the same idea in two different ways? What Jesus has to point out is: All matters should be first aimed at fulfilling the Will of God.