Re "back"

back to the beginning

revert

return

reincarnate

start

new origin

TO

It is our common pursuit goal.

TO

We have our respective directions.

TO

Make us drift aimlessly.

TO

It is the dream that we are willing to pursue.

We came to this passionate world in the 1960s. 

"Swear in Chairman Mao's name" used to be our belief in the 1970s and the 1980s.

We marched on confusedly towards our future in the 1990s.

We gather together and return then place that we have ever "TOed".

The tough experiences are our wealth.