Natural transformation (individuation).
As I have pointed out, in addition to the technical processes of transformation there are also natural transformations.
All ideas of rebirth are founded on this fact.
Nature herself demands a death and a rebirth.
As the alchemist Democritus says: “Nature rejoices in nature, nature subdues nature, nature rules over nature.”
There are natural transformation processes which simply happen to us, whether we like it or not, and whether we know it or not.
These processes develop considerable psychic effects, which would be sufficient in themselves to make any thoughtful person ask himself what really happened to him.
Like the old man in our fairytale, he, too, will draw mandalas and seek shelter in their protective circle; in the perplexity and anguish of his self-chosen prison, which he had deemed a refuge, he is transformed into a being akin to the gods.
Mandalas are birth-places, vessels of birth in the most literal sense, lotus-flowers in which a Buddha comes to life.
Sitting in the lotus-seat, the yogi sees himself transfigured into an immortal. ~Carl Jung, CW 9i, Para 234