" The formula presents a symbol of the self, for the self is not just a static quantity or constant form, but is also a dynamic process. In the same way, the ancients saw the imago Dei in man not as a mere imprint, as a sort of lifeless, stereotyped impression, but as an active force. The four transformations represent a process of restoration or rejuvenation taking place, as it were, inside the self, and comparable to the carbon-nitrogen cycle in the sun, when a carbon nucleus captures four protons (two of which immediately become neutrons) and releases them at the end of the cycle in the form of an alpha particle. The carbon nucleus itself comes out of the reaction unchanged, “like the Phoenix from the ashes.”108 The secret of existence, i.e., the existence of the atom and its components, may well consist in a continually repeated process of rejuvenation, and one comes to similar conclusions in trying to account for the numinosity of the archetypes. "
― C.G. Jung , Aion (Collected Works 9ii)