Tell me where is fancy bred,Or in the heart or in the head?How begot, how nourished?
Reply, reply.It is engender’d in the eyes,
With gazing fed; and fancy diesIn the cradle, where it lies.
Let us all ring fancy’s knell;I’ll begin it – Ding, dong, bell.
Ding, dong, bell.
The Merchant of Venice
Act III, Scene 2
An excellent performance of this piece can be viewed here: https://www.youtube.com/watch?v=ckAd1zDSRpA