2 adjectives to describe percipients

[Footnote 5: In all the arts, however, the very idea of craftsmanship implies some sort of external percipient, or, in other words, some sort of an audience.

He felt overwhelmingly drawn to the personality of the man who had revealed to him such splendid things, and in his mind stirred a keen and poignant regret that such knowledge could not be permanent and universal, instead of merely a heavenly dream in the mind of each separate percipient.

2 adjectives to describe  percipients