The Mormons / LDS believe in the existence of a Heavenly Mother. It was taught in the 1830’s by their founder Joseph Smith, and is still believed today although they like to keep the doctrine on the down-low so as not to be accused of goddess-worship and / or worshiping the Whore of Babylon or something. They also believe Jesus was married to Mary Magdalene and had children, Joseph Smith once claiming to be a descendant of Jesus. Holy Blood, Holy Grail and the DaVinci Code right there in the 19th Century!
From the Encyclopedia of Joseph Smith’s Teachings, pg. 436; “’Will I know my mother as my mother when I get over on the Other Side?’ asked a little girl. ‘Certainly you will,’ was the instant reply of the Prophet [Joseph Smith]. ‘More than that, you will meet and become acquainted with your eternal Mother, the wife of your Father in Heaven.’
‘And have I then a Mother in Heaven?!’ exclaimed the astonished girl. ‘You assuredly have. How could a Father claim His title unless there were also a Mother to share that parenthood?'”
“Logic and reason would certainly suggest that if we have a Father in Heaven, we have a Mother in Heaven. That doctrine rests well with me. However, in light of the instruction we have received from the Lord Himself, I regard it as inappropriate for anyone in the Church to pray to our Mother in Heaven… The fact that we do not pray to our Mother in Heaven in no way belittles or denigrates her. None of us can add to or diminish the glory of whom we have no revealed knowledge” – LDS apostle Gordon B. Hinckley, Ensign Magazine, November 1991
In the Book of Mormon one of the characters Nephi has a vision of the Tree of Life and it immediately makes him think of Mother Mary. The Asherah Tree and Queen of Heaven connection of Mother Mary cannot be a coincidence. Joseph Smith studied Kabbalah, Freemasonry and the occult, which is very cool. The Tree of Life is the major teaching of Kabbalah.