So nice to read you all here,
Could ambrosia be that substance that the spiritual alchemist use to transform the lead that we are into Gold, the Philosophical Egg (Hirayangarbha, the golden womb or golden egg)?
In the picture of Soma churning of the Ocean:
I see the pillar in the centre as the tip of Sushumna near the third eye opening on the crown. The gods on both side of the pillar puling on the serpent, as the horizontal path running feels there on third eye level, churning the Sushumna so that below the Abyss Sea, separating the Supenals from Creation, starts to flow the Soma into Creation.