In an era when reading activities are still greatly restricted, book wandering means a breakthrough in this restriction. When people are walking in the street in their spare time, they accidentally meet the opportunity of a good book, just like meeting a tasteful friend and starting a new reading career at the moment of thumping.
If natural drifting is an activity that is beneficial to human body and mind, then book drifting is a sail that carries human good wishes and leads people to pursue and explore those unknown beautiful worlds.