In Hometown, moistening the soil is called "master". Why does "I" seem to have a cold feeling?

When I was a child, Runtu and I were childhood friends, and their status was equal. After adulthood, with the passage of time, quantitative and qualitative changes have taken place. Runtu was demoted to the lower class by feudal society, and I still live in the upper class. I didn't notice this, but the sound of moistening the soil reminded me that a qualitative leap had taken place after many years.