A symbol is indeed the only possible expression of some invisible essence, a transparent lamp about a spiritual flame; while allegory is one of many possible representations of an embodied thing, or familiar principle, and belongs to fancy and not to imagination: the one is a revelation, the other an amusement.
William Butler YeatsMysticism has been in the past and probably ever will be one of the great powers of the world and it is bad scholarship to pretend the contrary.
William Butler YeatsGrant me an old man's frenzy, Myself must I remake Till I am Timon and Lear Or that William Blake Who beat upon the wall Till Truth obeyed his call.
William Butler YeatsNor law, nor duty bade me fight, Nor public men, nor cheering crowds, A lonely impulse of delight Drove to this tumult in the clouds.
William Butler Yeats