Literature Reference: Recalling the days in Suzhou, I was often familiar with the summer solstice feast. Source from 'He Mengde Xiazhi Yi Suzhou Cheng Lu Binke'.
常: Ordinary; common. Describing people and things that stand out, distinct from the ordinary.
谙: Well-versed and proficient.
Meaning: Often familiar, symbolizing deep understanding and familiarity with things.