Joy and anger,
sorrow and happiness,
caution and remorse
Come upon us by turns,
with ever changing mood.
They come like music from hollows,
like wood when played by the wind,
or how mushrooms grow from the damp.
Daily and nightly they alternate within
but we cannot tell whence they spring.
Without these emotions I should not be.
Without me, they would have no instrument.
– Chuang Tzu