Man becomes whole, integrated, calm, fertile, and happy when (and only when) the process of individuation is complete, when the conscious and the unc… - Carl Jung

The real mystery does not behave mysteriously or secretively; it speaks a secret language, it adumbrates itself by a variety of images which all indicate its true nature. I am not speaking of a secret personally guarded by someone, with a content known to its possessor, but of a mystery, a matter or circumstance which is “secret,” i.e., known only through vague hints but essentially unknown. The real nature of matter was unknown to the alchemist: he knew it only in hints. In seeking to explore it he projected the unconscious into the darkness of matter in order to illuminate it. In order to explain the mystery of matter he projected yet another mystery - his own psychic background -into what was to be explained: Obscurum per obscurius, ignotum per ignotius! This procedure was not, of course, intentional; it was an involuntary occurrence.

For lack of empirical data I have neither knowledge nor understanding of such forms of being, which are commonly called spiritual. ...Nevertheless, we have good reason to suppose that behind this veil there exists the uncomprehended absolute object which affects and influences us—and to suppose it even, or particularly, in the case of psychic phenomena about which no verifiable statements can be made.

there is, after all, no harsher bitterness than that of a person who is his own worst enemy.