Question

Why is the poem title 'Day by Day'?

Answer 1

Is it a some kind of joke..
Title is already given in your question....
It is 'Day by Day'........

Answer 2

The poet Rabindranath Tagore has titled the poem as day by day because, in the poem, he talks about the advances that have been done in the past as well as the ones that are to be done in the future.

He talks about how praying has increased our knowledge and continues to do so. He has addressed the poem to God and suggests every reader to thank God before starting their day.

Thus, he named the poem as “Day by Day”.