过往清明
[guò wăng qīng míng]
Literally means 'Past Qingming', referring to past times being clear or pure. Qingming has dual meanings: first is a Chinese traditional festival (the Qingming Festival for honoring ancestors), secondly 'Qingming' can mean clarity and purity. So this username conveys either a yearning for clear memories or honoring traditions from bygone eras.