Heard music is sweet but those unheard is sweeter.

(বাস্তবতার চেয়ে কল্পনাই বেশি মধুর)

Heard music is sweet but those unheard is sweeter this line comes from 'Heard melodies are sweet but those unheard are sweeter' of Keats' 'Ode on a Grecian Urn'. This means that sometimes imagination is better than the experience of the physical senses. It is the tension set up between the experience of the senses and the experience of the imagination. We, human being, always like to imagine the good ones. But reality is not always like that. There is no obstacle in the imaginary world. One can design one's imaginary world without facing any difficulties. But when he comes to reality, he faces so many difficulties before him. So imaginary world is always easier than the real world.