Here's one of the newer bands (Shunno) in Bangladesh performing a mystic (Marefati) song composed centuries ago by the great Lalon Fakir, English lyrics follow (Hint: Talking about the 'Rooh' (soul) as a bird and its weak home, the cage, which is the human heart):
The unknown Bird in the cage...
how does it fly in and out?
Catch it, I would, if I could...
and put my mind's chains on its feet.
There are eight rooms with nine doors,
with lattice-work in between.
On top of that, there' s a central yard
and a hall of mirrors.
The unknown Bird in the cage...
how does it fly in and out?
The Bird wouldn't behave so,
had it not been for my ill-luck.
It has broken through its Cage
and flown away somewhere....
The unknown Bird in the cage...
how does it fly in and out?
O Mind, you have lived with high hopes,
but your Cage is made of raw bamboo.
One day this Cage (too) will fall and break.
Lalon says, "The door 's ajar, the Bird's flown!"