Taoism states that in saliva there are high concentrations of Chi, and therefore advise always to swallow it during the practice of special exercises; spitting would symbolically constitute a sacrifice similar to ejaculation. In the case that concerns us, it was not alluded to the saliva itself, but to the divine essence contained in that saliva.
From the liquid of the jar, which contained the saliva (and DNA) of each of the gods, and through magical fermentation, the gods created a man so that this covenant between Aces and Vanes would never be forgotten. This man was called Kvasir, and it immediately became apparent that his most remarkable quality was his immense wisdom and his knowledge of all the mysteries of the nine worlds. Everywhere he became known, and not the wisest of them disdained to ask him for advice or to ask him questions. Over time, Kvasir's fame came to the ears of two evil dwarves, the Fialar and Galar brothers, who became envious, and planned to appropriate the wisdom of Kvasir. He was invited to a party in a large congregation of dwarves, an invitation that Kvasir, being naive and innocent by nature, accepted. The party took place in an underground cave, and the conversation of the dwarves dealt only with benefits, losses, wealth, possessions, resentments, and revenge. After dinner, the brothers Fialar and Galar wanted to talk privately with Kvasir, asking him to enter with them in a dark chamber. Kvasir, without suspecting anything, entered with them into the chamber, and when he was inside, the dwarves pulled out knives and killed the poor sage, causing his blood to gush. The evil dwarfs drained all their blood and collected it in two vessels called Son ("blood") and Boden ("Vessel", also "soil" in German), and in a cauldron called Odrorir ("remover of the heart"). Compare Son and Odrorir with Sam-udra, the vessel of the Hindu Soma. They poured honey into the 3 containers, and the mixture between the honey and the blood of Kvasir fermented in the darkness and eventually formed a sublime concoction which they called poetry liqueur. Anyone who proved it would become a sage or a poet, obtaining magical knowledge that came from the memory of the blood of Kvasir. [5] This liquor of poetry, however, gave neither immortality nor eternal youth attributed to other sacred substances of other Indo-European mythologies.