Christianity has for many centuries emphasized the maleness of God, almost to the point of completely eliminating the feminine.  That was not always the case.  In the Jewish tradition, the Holy Spirit was referred to as Ruach or Shekinah, both feminine words.  In Genesis, it is Ruach that hovers like a bird over the void (or the waters) which probably inspired artists to use a dove to symbolize the Holy Spirit.  A dove is also a feminine symbol.  In the Gnostic churches, we find Sophia, the female aspect of God that is also known as Wisdom.  
    While Christianity generally thinks of all three persons of God as male, many of the Christian churches still show some importance to the female through the various Marys or Miryams.  There is Miryam, the sister of Moses who was a prophetess.  Mary, the mother of Jesus, and Mary Magdalen (or Mary of Magdala) are just the best known of the nine Mary's in the bible.  There is even significant historical evidence that women priests were common during the first two centuries of Christianity, but were later banned when churches became public buildings rather than caves and private homes (the Romans and Greeks banned women from speaking in public, or even, with a few exceptions, attending events in public buildings). 
     Surprisingly, the recent best selling book, "The Shack", correctly has the Holy Spirit appearing in the form of a women, so maybe some Christians are ready to accept that God is female as much as male.