What's the goal of learning the Myth of Osiris?

Answer from the V.M. Samael Aun Weor.

Let us search for Osiris, Isis, and Horus within ourselves, within the unknowable profundities of our own Being. It is obvious that Osiris, Isis, and Horus constitute in themselves the Monad, the Duad, and the Triad of our Innermost Being…

Did you ever hear about Brahma? He is in Himself Father-Mother-Son (Osiris, Isis, Horus) ... In each new cosmic dawning, the universe resurrects, like the Phoenix bird from within its own ashes… In the dawning of each Mahamanvantara, the Monad unfolds again into the Duad and into the Triad…

At the daybreak of the new Cosmic Day, after the profound Night, the SON, the TRIAD, HORUS (THE DIVINE SPIRIT WITHIN EACH ONE OF US), emanates the Essence, His mystic principles, from Himself into the Wheel of SAMSARA, with the purpose of acquiring a DIAMOND SOUL…

Ah! How great the joy of Horus is when acquiring a DIAMOND SOUL! Then, He is absorbed within His DIVINE MOTHER, and She is also fused with the FATHER, who together form a unique Diamond Flame, a GOD of resplendent, interior beauty…

Samael Aun Weor. Book: My Return Into Tibet.

Answer from the Magazine "The Wisdom of the Being".

The initiate presents his negative confession, one for each of the 42 judges of karma. If he has really overcome all his psychological aggregates, Horus (the Being) himself will take the initiate before Osiris, our father who is in secret, judge and lord of the region of the dead (who have disintegrated his defects). Behind Osiris we can see his wife Isis and Nephthys, representation of our Divine Mother, watching over the initiate as always.

Friends, here is the map of the road, is the path that we must live, that's why the Bible says: death is the crown of all, but the death of the passions and vices that we have fed through the ages.

Osiris and Isis are not something that belongs to the past, they live and throb in every atom of the universe, it is time for them to manifest themselves in our lives, through events that are related to their attributes and faculties. Every time we illuminate the path of others with the light of gnosis, every time we fight against our own Seth and his inner demons, every time we bathe in the pure waters of life from the Nile River that flows overwhelmingly through our sexual system, we will make them part of our lives. Osiris, Isis, Horus come to us, illuminate our hearts, guide our steps towards the truth and strengthen our soul with the force of love.

The Wisdom of Being Magazine 92, Chapter: "The Myth of Osiris."