In a ball, what fascina— […] a ball is a symbol of the Self. But there is one point I want to stress […] which specific aspect is stressed?
Von Franz establishes that while the ball is unambiguously a symbol of the Self, the interpreter must specify which aspect of the Self its particular round, rolling, playful character emphasizes, rather than resting in the generic designation.
, Archetypal Patterns in Fairy Tales, 1997thesis