I think that if we regard God's word as the most important thing, then, we can easily believe and understand that Heavenly Mother exists and that She's there to give us eternal life.

The Bible testifies to Heavenly Mother. Just as all life is given by our mother, the eternal life of the soul is also given by our Heavenly Mother. That is why you cannot receive eternal life without believing in Heavenly Mother.

The Bible says that the marriage of the Lamb has come and his wife has been prepared, and there are saints who have been invited to this wedding feast. Here, the lamb is not an actual lamb, but an expression referring to Jesus. The lamb that appears in the Book of Revelation refers to Jesus, the Second Coming of Jesus. In other words, in Chapter 19 of the Book of Revelation, all the main characters of the wedding feast, including the groom, bride, and guests, appear.
The Bible clearly reveals who the bride of the heavenly wedding banquet is, symbolized by the heavenly Jerusalem. She said she was our mother.
The bridegroom of the wedding feast is the Lamb, ‘God the Father,’ and the bride of the wedding feast, heavenly Jerusalem, is ‘God the Mother.’ The guests of the wedding feast are, of course, those invited by ‘our father’ and ‘our mother’ and the saints who will be saved.

'Heavenly Mother' is a synonym for 'God the Mother' and, along with 'Heavenly Father (God the Father)', is the savior who gives eternal life to mankind.
The Bible tells us that people have not only a body but also a soul, and that the soul also has a hometown and parents.
Heaven, the future home of the souls of saved saints, is a place where Heavenly Father and Heavenly Mother are together. Heavenly Father and Heavenly Mother have been together since the creation of heaven and earth in the beginning.
However, the existence of Heavenly Mother was not revealed from the beginning.
For this reason, mankind has long maintained faith in Heavenly Father.
The time when Heavenly Mother becomes known to the world is prophesied to be the final time of the redemptive work.