The Sirens were dangerous creatures, who lured nearby sailors with their enchanting music and voices to shipwreck on the rocky coast of their island. And so the Siren Instinct in women is the knowledge and use of the power that women have over men through their seductiveness, to obtain advantage in life, career, and romance. In the early steps of romance and sexual attraction, one could envision this instinct as working hand in hand with the Aphrodite Instinct to punctuate beauty and the visual enticement of males, through the body and motion, as the Sirens lured the soldiers with their ruse of physical beauty. One sees this instinct at work in attire and cosmetics as well.
Sirens were believed to combine women and birds in various ways. In early Greek art, Sirens were represented as birds with large women's heads, bird feathers and scaly feet. Later, they were represented as female figures with the legs of birds, with or without wings, playing a variety of musical instruments, especially harps.
Leonardo da Vinci wrote of the Siren, "The siren sings so sweetly that she lulls the mariners to sleep; then she climbs upon the ships and kills the sleeping mariners."
In 1917, Franz Kafka wrote in The Silence of the Sirens, "Now the Sirens have a still more fatal weapon than their song, namely their silence. And though admittedly such a thing never happened, it is still conceivable that someone might possibly have escaped from their singing; but from their silence certainly never."
We should take note of this in the Siren Instinct in women, that a message of "sweetness" delivered without words, the charm of silence is incredibly powerful for the use of women in gaining their objectives, whether honorable or dishonorable. That the visual appeal to a mate is often silent, and arouses the imagination, which is the objective of Step 1 of courtship - the mystery and beauty that spark passion in the first place. This is a powerful instinct in women that may be disdained by our current culture, but is nevertheless a major tool in the toolbox of a woman seeking passion and inspiration, should she stoop to master the skill.