What are the characteristics of the meaning of "tiny" and "tiny" in Rabindranath Tagore's Firefly?

In the poem, smallness has a positive meaning, while smallness has a derogatory meaning. Tiny means that it is small, and small means that others think it has a dispensable status. Being small makes people laugh.

I think the most important thing in the first section is Firefly’s attitude towards life, that kind of positive and optimistic attitude. There is no need to compare with the sun and the moon. I just try my best to shine my own light and contribute my own strength. It is easy to imagine, for example, the cleaners on the street in life, ordinary but fulfilling. Quietly clean up the garbage in this city without belittling yourself.

It’s easy to understand. I won’t go into details. You can organize the language yourself