JOY
In general, one must try with all one’s might to be joyful always. For it is human nature to be drawn to bitterness and sadness because of the wounds one has suffered – and every person is full of troubles. So one must force oneself, with a great effort, to be happy always…
Now, it is also true that a broken heart is very good – but only at certain times. So, it is wise to set an hour each day to break one’s heart and talk to God, as we do. But the rest of the day, one must be in joy.
–Rabbi Nachman of Bratzlav
another eye opens 