Sagacious - in Jungian Psychology

In Jungian Psychology

In Jungian analytical psychology, senex is the specific term used in association with this archetype. In Ancient Rome, the title of Senex (Latin for old man) was only awarded to elderly men with families who had good standing in their village. Examples of the senex archetype in a positive form include the wise old man or wizard. The senex may also appear in a negative form as a devouring father (e.g. Uranus, Cronus) or a doddering fool.

In the individuation process, the archetype of the Wise old man was late to emerge, and seen as an indication of the Self. 'If an individual has wrestled seriously enough and long enough with the anima (or animus) problem...the unconscious again changes its dominant character and appears in a new symbolic form...as a masculine initiator and guardian (an Indian guru), a wise old man, a spirit of nature, and so forth'.

The antithetical archetype, or enantiodromic opposite, of the senex is the Puer Aeternus.