Marie-Louise von Franz
Marie-Louise von Franz was a Swiss
Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

 Jungian psychologist
Psychologist is a professional or academic title used by individuals who are either:* Clinical professionals who work with patients in a variety of therapeutic contexts .* Scientists conducting psychological research or teaching psychology in a college...

 and scholar.
Von Franz was born in Munich
Munich The city's motto is "" . Before 2006, it was "Weltstadt mit Herz" . Its native name, , is derived from the Old High German Munichen, meaning "by the monks' place". The city's name derives from the monks of the Benedictine order who founded the city; hence the monk depicted on the city's coat...

, Germany, the daughter of an Austrian baron
Baron is a title of nobility. The word baron comes from Old French baron, itself from Old High German and Latin baro meaning " man, warrior"; it merged with cognate Old English beorn meaning "nobleman"...

. In Switzerland, she was known by a pet form of her Christian name, Marlus.
Von Franz worked with Carl Jung
Carl Jung
Carl Gustav Jung was a Swiss psychiatrist and the founder of Analytical Psychology. Jung is considered the first modern psychiatrist to view the human psyche as "by nature religious" and make it the focus of exploration. Jung is one of the best known researchers in the field of dream analysis and...

, whom she met in 1933 and knew until his death in 1961. Jung believed in the unity of the psychological and material worlds, i.e., they are one and the same, just different manifestations.

Number is therefore the most primitive instrument of bringing an unconscious awareness of order into consciousness; from it you can best tap the unconscious constellation. This probably why it is used in most mantic methods.

Creation Myths (1995) 'Chains' (Genealogies), p. 326 Shambhala ISBN 0-87773-528-X :German edition (1972) Shambhala English edition 1995; ISBN 0-87773-528-X : [God (as) Maker]

In one African myth the word for God is even identical with skill and capacity. The Godhead is defined as that thing which appears in man as the mystery of an unusual skill or capacity. It is something divine, a spark of the divinity in him, not his own possession or achievement, but a miracle.

p. 140 - 141

In other words, the idea of the philosopher's stone of the alchemists is identical with the idea of the glorified body. This offers an archetypal approach to some Eastern ideas, because in different Eastern yoga practices and meditation the goal is to produce within oneself the so-called diamond body which is an immortal nucleus of the personality.

To sum up: numbers appear to represent both an attribute of matter and the unconscious foundation of our mental process. For this reason, number forms, according to Jung, that particular element that unites the realms of matter and psyche. It is “real” in a double sense, as an archetypal image and as a qualitative manifestation in the realm of outer-world experience.

p. .52

It [number] preconsciously orders both psychic thought processes and the manifestations of material reality.

p. 53