Time used to be very slow, so slow that when I recall the trivial matters of yesterday, every detail is still so clear; now life is very busy, and I am so busy all year round that I don't even remember what I had for lunch today.
The so-called things are the big and small things, people or things in life for us ordinary people to talk about and appreciate. The so-called six notes: remember the past, remember the returnees, remember the passers-by, remember the happiness, remember the sadness, and remember the regrets.
Purpose: Memories that have been repeatedly polished by time must be our most cherished treasure.