The deeper that sorrow carves into your being, the more joy you can contain... When you are joyous look deep into your heart and you will find that it is only that which has given you sorrow that is giving you joy.
If you have no love, do what you will - go after all the gods on earth, do all the social activities, try to reform the poor, the politics, write books, write poems - you are a dead human being. Without love your problems will increase, multiply endlessly.
All humans are dead except those who have knowledge; and all those who have knowledge are asleep, except those who do good deeds; and those who do good deeds are deceived, except those who are sincere; and those who are sincere are always in a state of worry.