Khachar bhitor ochin pakhi - 'the strange(unknown) bird of the cage' is a song by Lalon

khachar vitor, ochin pakhi kemne ashe jai!
[Look, how the strange bird flies in and out of cage!]
Tare dhorte paarle mono bedri, ditam pakhir paay.
[If I could catch, I would bind it with my mind's fetter.]

aat kuturi, noi doroja ata, moddhe moddhe charka kata
[(It has) eight rooms with nine closed doors, with windows in between,]
taar upore sodor kotha, aina mohol saar.
[and at the top (you'll find)the main room, with row of mirrored house.]

kopaler fer, noile ki aar? pakhitir emon babohar?
[its just fate, or else why would the bird behave like this?]
khacha venge pakhi amar, konkhon dei udral!
[my beloved bird, can fly away anytime, breaking the cage!]

mon tui roili khachar aashe, khacha je tor kacha basher..
[O my mind, submerged in desire of the cage, (alas) its made of raw bamboos1 ]
kondin khacha podrbe khoshe, fokir lalon kede koy!
[Lalon Fakir cries: someday this cage would just fall apart..]

See also:
JustSomeLyrics
81
81.3
Prine, John Blue Umbrella Lyrics
Eiffel 65 Time Is Not Our Cage Lyrics