The introduction begins with a consideration of the play Il Pastor Fido (The Faithful Shepherd) and the interpretation of a key scene in art, when the shepherd Mirtillo -- having disguised himself as a woman to gain access to the object of his desire, the nymph Amarillis -- comes upon the nymphs holding a kissing competition among themselves. He enters the competition (still in disguise) and is crowned the victor by Amarillis (the scene commonly portrayed in paintings).