Introduction.

The closing question from Yeats΄ poem Among School Children incites a paradoxical answer. It is possible to observe the particular positions and movements of an individual dancer and thereby identify the performance as a specific dance, while it is impossible to observe the performance of the dance devoid of the positions and movements of the dancer. Still, any other dancer may well perform the same dance, and just therefore it is possible to distinguish the particular positions and movements that constitute a specific dance from any individual performance. ˵Such remarks indicate that we are aware of two ontologically distinct entities within one perceptual phenomenon,″ Gill (1975) highlights. [ABSTRACT FROM AUTHOR]