Sadhguru Jaggi Vasudev is an Indian Yogi and the founder of Isha Yoga. Here are few thoughts on Joyfulness shared by Sadhguru in one of his discourses.
When you look at yourself, if you are happy and joyful, naturally you are a very loving, generous, wonderful human being. This is true for everybody.
On the other hand, when you are in a state of unhappiness, frustration or any other sense of unpleasantness within yourself, you may be nasty. There is no point trying to be loving, trying to be pleasant to somebody else.
When you are feeling pleasant, you are naturally pleasant to everyone around you. The fundamental thing that human beings have to work towards is to make themselves truly joyful and blissful.
Trying to produce good human beings has never really worked. When people are joyful, they are all wonderful human beings. Joy is the best insurance against all evil.
Sadhguru Jaggi Vasudev