“This is a tomb” etc. we reach the first positive statement … Maier’s opinion is that this has nothing to do with the tomb, which was no tomb, but that Aelia herself is meant. “For she herself is the container, converting into herself the contained; and thus she is a tomb or receptacle that has no body or content in
Jung uses the Aelia Laelia Crispis inscription to establish the tomb as a self-referential alchemical symbol—an autocontaining vessel whose meaning is inseparable from the concept of the self as totality.
, Mysterium Coniunctionis: An Inquiry into the Separation and Synthesis of Psychic Opposites in Alchemy, 1955thesis