Kazi Nazrul was a Bengali poet, patriot and composer during the end of the colonial era in India who supported Indian unity.
In his quest to unify India, Nazrul attempted to make Hindus and Muslims overlook their internal issues with each other and instead fight against the British.
Kazi Nazrul went on to write more poems, as well as the first Bengali protest music, though he was later arrested for his outspoken beliefs, becoming one of the most important men in the Indian independence movement.
Furthermore, the song articulates that overcoming racism entails bridging cultural divides, employing the metaphor of the siren and flute to argue that such separations are psychological rather than inherent.
It serves not only as a musical adaptation but also as a means of reinforcing South Asian identity by echoing historical challenges against oppression.