The meaning of the symbol of sex, as in unification, is the merging of the two underlying energetic principles of the animated universe. It is what sparks creation through merging of the different aspects of manifestation. All creation arises from unification, where two contradictory aspects are merged into something new. This happens in every conceivable realm of perception, not only biologically.
Humans are fully capable of Asexual reproduction although it does not take on the conventional form of manifestation. As art is essentially information, and thus genetic material, this can be merged with beings and carried along without any biological merging taking place. There are artists that are still animated through human expression who has long outlived other strains of human expression. Artists whose ancestry has since long died out. But because their information is still animated in the minds of humans in the present, they are still alive in a genetic sense.
The thing which humans call 'immortality' can be achieved in so many ways. Physical manifestation is merely one aspect out of countless aspects. Informational immortality is a completely different aspect. The genetic material of the ancient civilizations are still embedded in our genetic code, as their work of art are still in our animation of the reality. The ancient pyramids being one example out of many. We can perceive them, as to say, our brain can animate that holographic representation in our mind, because the information they left in our genetic code is still present. The longer something is remembered, the more it is informationally immortal, as it constitutes a part of our inner formation of biological material.
Spreading information through art is essentially the same as spreading biological material through physical reproduction, as it is all a matter of genetics in the end anyway. Art itself arises when the two aspects of the human psyche are combined and thus sparks creation, in Jungian philosophy referred to as Anima and Animus. Creativity is essentially a sexual act in the mental realm, as true creativity is only achieved by means of combining differences into something new. Creating an informational offspring which then impregnates the genetic code of whomever observes it.
Everything you have ever learned or observed from someone else is carried genetic material in form of information, so in that sense, artists are among the most sexually active on the planet, whether it takes a physical expression or not.