“All states of being are determined by mind. It is mind that leads the way.
As surely as our shadow never leaves us,
so well-being will follow when we speak or act with a pure state of mind”.

Have you ever tried to run away from your shadow? As hard as you might try it never leaves you. Any action by body, speech or mind that is done with pure motivation will indeed lead to increased well-being. However small and apparently insignificant the act might be, happiness will follow.

Ajahn Munindo, Dhammapada Reflections, v2