"Be not afeard. The isle is full of noises,
Sounds, and sweet airs, that give delight, and hurt not.
Sometimes a thousand twangling instruments
Will hum about mine ears, and sometime voices,
That if I then had waked after long sleep
Will make me sleep again; and then in dreaming
The clouds methought would open and show riches
Ready to drop upon me, that when I waked
I cried to dream again."

(The Tempest, act III, scene II - Shakespeare)