Its chief function is ablution, the cleansing of the sinner, and in alchemy this is the ‘lato,’ the impure body; hence the oft-repeated saying attributed to Elbo Interfector: ‘Whiten the lato and rend the books, lest your hearts be rent asunder.’
Jung identifies ablution as the alchemical equivalent of baptismal cleansing, mapping the purification of the impure body (lato) onto the psychological necessity of confronting and dissolving moral and psychic impurity.
, Mysterium Coniunctionis: An Inquiry into the Separation and Synthesis of Psychic Opposites in Alchemy, 1955thesis