"Practitioners are distressed by wandering thoughts.
They think it is difficult to tame them.
Don't be afraid of wandering thoughts.
Do not waste your energy trying to repress them.
All you have to do is recognize them.
Do not attach to any wandering thoughts,
do not follow them,
and do not try to get rid of them.
As long as you don't string thoughts together,
wandering thoughts will depart by themselves."
- Chan Master Xuyun 虛雲老和尚
(Hsu Yun, Empty Cloud), 1840-1959.