The mind well-tamed

Like a fish
pulled from its home in the water
& thrown on land:
this mind flips & flaps about
to escape Mara's sway.

Hard to hold down,
nimble,
alighting wherever it likes:
the mind.
Its taming is good.
The mind well-tamed brings ease.

-Dhammapada, 3, translated by Thanissaro Bhikkhu.