Why does the poet compare it to a marriage procession in poem trains by humayun kabir?

The speaker likens the train and the passengers to a wedding procession for several reasons. It is common for a wedding procession to be a jubilant event, filled with joy, anticipation and celebration. The train, too, is filled with people from all walks of life who are journeying towards their destinations, creating a sense of camaraderie and fellowship among the travellers.

Additionally, the train, like a marriage procession, is marked by its colourful decorations and its sense of movement and transition. The train’s motion evokes a sense of progress and change, just as a marriage represents a major transition in one’s life. The train, just like a wedding, is a symbol of hope, possibility and the promise of a new life, making the comparison between them all the more apt.