“The main content of Jung’s private library was contemporary literature of the 19th and 20th century, mainly about medicine, psychiatry, psychology and philosophy. Additionally there are a great number of books on antique cultures, gnosis, christian symbols, eastern religion, ethnology and occultism. The library also contains a collection of about 300 rare books (printed before 1800) on alchemy, theurgy and kabbala, as well as antique literature on dreams, writings of church fathers and of the latin and greek classic.”
A complete understanding of mythology means having knowledge of the myths from other lands and peoples.
This is the world of what we now call Central and Latin America; Egypt, India, China, and Scandinavia.
Another mythology that brings understanding is that of the world of Middle Earth as created by J.R.R. Tolkien {the Silmarillion}