And there are plays – and books and songs and poems and dances – that are...

And there are plays – and books and songs and poems and dances – that are perhaps upsetting or intricate or unusual, that leave you unsure, but which you think about perhaps the next day, and perhaps for a week, and perhaps for the rest of your life.
Because they aren't clean, they aren't neat, but there's something in them that comes from the heart, and, so, goes to the heart.