In "Kabuliwala," is Rahmun dynamic or static?

In "Kabuliwala," Rahmun is a static character. He does not change. 

Rahmun is depicted as the happy-go-lucky Kabuliwala. He visits Mini each day, "bribing" her with nuts and almonds while cracking inside jokes with her about visiting "her father-in-law." To readers and to Tagore as the narrator, the Kabuliwala is simply an old man who has made friends with little Mini.  

When the Kabuliwala comes back to visit her, he is affected by her change. She is now a bride-to-be, who clearly understands a different meaning regarding going to her "father-in-law's place." The Kabuliwala gains depth when he confesses to Tagore that he has a little girl "in my own home" and that when he brings fruits to Mini, he thinks of his own girl. He forged the friendship with Mini because of a desire to be close to his own girl. The Kabuliwala was not light-hearted. Rather, he was mournfully sad because he left his daughter in Kabul in order to pursue his career in Calcutta. With so much time having passed, it is clear he will not recognize his daughter. She will be more of a stranger to him than Mini. Just like Tagore, we have acquired a deeper understanding of the Kabuliwala.

It is important to stress that the Kabuliwala never changed. He carried the emotional weight of separation from his daughter from the story's start. When he takes out the "small and dirty piece of paper" of his daughter's handprint, it was clear that he carried it in his heart throughout the story. He never changed, remaining a static character.

In our increasing understanding about the Kabuliwala, we, like Tagore, are dynamic in our change. The ending of the story is not about Mini or about her wedding. It is about Tagore being able to unite a father and daughter "in a distant land." The change that he and we experience underscores the strikingly consistent sadness of the Kabuliwala.