VIRGIN MARY

A virgin is one who is chaste; in the original meaning of both words, it is one who properly harnesses their sexual forces.

This would be in a “pure” way, meaning that no lust or personal desire for pleasure or sensation is involved.

Immaculate conception is when two chaste virgins unite in the sacred arcanum of the covenant, and one sperm is released to fertilise the ovum, under the guidance of the forces of creation.

The fruit of such a union is not “born of sin”, as the “original sin” was to “consume” the fruit of “knowledge” (as in “he knew her” in the biblical sense), the spasm and spill which marks the beast kingdom.
The tree of knowledge of tov (good or purity) and ra (evil or pollution) is the sexuality and power of creation from which all life springs.

When Eve (the physicality and sex organs) tempted Adam (the brain and mind) with the fruit (the orgasm), humanity fell from the state of grace and polluted themselves, as a race, over an extended period of degeneration.

True humans are not supposed to have sex like animals, as it causes us to loose our vitality (ye will surely die) and feeds the energy of creation to the egoic mind (Cain).

Not so much to do with morality, just simple cause and effect.
The science of being born again in the solar astral body aka immortal soul explained at: gnosticteachings.org