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 YeatsTo be born woman is to know - although they do not speak of it at school - women must labor to be beautiful.
William Butler YeatsSomewhere beyond the curtain Of distorting days Lives that lonely thing That shone before these eyes Targeted, trod like Spring.
William Butler Yeats