In "Modern Man in Search of a Soul" (1933) Swiss psychologist Carl Gustav Jung (1875-1961) remarks: "The artist is not a person endowed with free will who seeks his own ends, but one who allows art to realize its purposes through him . . . To perform this difficult office it is sometimes necessary for him to sacrifice happiness and everything that makes life worth living for the ordinary human being." (tr. W.S. Del and C.F. Baynes)
The German poet Rainer Maria Rilke (1875-1926) defines "sacrifice" in poetic or artistic activities "as the boundless resolve, no longer limitable in any direction, to achieve one's purest inner possibility." (Letter to Magda von Hattingberg, Feb. 17, 1914)
Here I will offer some insight into "one's purest inner possibility" and externalize its phrases as definitely as I can. To begin with, let us consider how possibility exists.