You mention miracles. Where is Mary in this?
Firstly remember that Jesus came on earth as a helpless baby who lived in a family subjected to real problems, like death-threats for instance that led to Mary, Joseph, and the infant Jesus becoming refugees in Egypt…
God wanted His Son incarnate in order to save us in His life, death, and resurrection…but couldn’t God have done that by simply sending Jesus as an adult human? If God had done that it would have been enough, because God is God and God is creator.
Instead God chose to allow His divine son to live what even his fellow townspeople recognized as an ordinary life. Good, but ordinary, and they wanted to throw Him off a cliff later when he told them He was more, He was the Messiah. "But we know his family…etc.** 29 They got up, drove him out of the town, and took him to the brow of the hill on which the town was built, in order to throw him off the cliff. 30 But he walked right through the crowd and went on his way. **Luke 4:29
More important that the miracles is the witness, and in that 'ordinary thirty years of quiet good-living according to the Commandments, God shows us how important is the witness of Christian living. He showed it in Jesus, and in Mary.
However, remember the very first known miracle at the wedding feast of Cana
Jesus Changes Water Into Wine
** 1 On the third day a wedding took place at Cana in Galilee. Jesus’ mother was there, 2 and Jesus and his disciples had also been invited to the wedding. 3 When the wine was gone, Jesus’ mother said to him, “They have no more wine.” **
4 “Woman,a] why do you involve me?” Jesus replied. “My hour has not yet come.”
** 5 His mother said to the servants, “Do whatever he tells you.” **
** 6 Nearby stood six stone water jars, the kind used by the Jews for ceremonial washing, each holding from twenty to thirty gallons.
(“http://www.biblegateway.com/passage/?search=John+2&version=NIV#fen-NIV-26102b”)]
** 7 Jesus said to the servants, “Fill the jars with water”; so they filled them to the brim. **
** 8 Then he told them, “Now draw some out and take it to the master of the banquet.”**
** They did so, 9 and the master of the banquet tasted the water that had been turned into wine. He did not realize where it had come from, though the servants who had drawn the water knew. Then he called the bridegroom aside 10 and said, “Everyone brings out the choice wine first and then the cheaper wine after the guests have had too much to drink; but you have saved the best till now.” **
** 11 What Jesus did here in Cana of Galilee was the first of the signs through which he revealed his glory; and his disciples believed in him**. John Chapter 2
You see what happened? Mary interceded for the hosts, who were about to lose face in the community,
Jesus said, it’s not time for miracles.
Mary just told the servants to obey Him,
Jesus acceded fto Mary, His mother’s intercession and did the miracle despite His protest that it wasn’t yet time for miracles
So if we Catholics ask her intercession, by Jesus’ response at the Wedding Feast of Cana, He put His seal on our doing so. It would not be included in the inspired word of God if not so.