"Be full of sorrow, that you may become hill of joy; weep, that you may break into laughter."
If something makes you happy in this world, you should think of what will happen to you if that thing were taken away.
Why should I be unhappy? Every parcel of my being is in full bloom.
O, happy the soul that saw its own faults.
When you feel a peaceful joy, that's when you are near truth