I thought you guys claim that Mary is your Mother...
26 When Jesus therefore had seen his mother and the disciple standing whom he loved, he saith to his mother: Woman, behold thy son. 27 After that, he saith to the disciple: Behold thy mother. And from that hour, the disciple took her to his own. (John 19)My mother and my brethren are they who hear the word of God, and do it. (Luke 8:21)
Both are thought of as mother.
Daughter Zion, Jerusalem, and Mary are all types of the Church. As in "Holy Mother Church."