What are the most important qualities we must develop to lead a happy life?

Look at a beautiful building. How is it strong? It has walls, which gives it support. But how do the walls get the support? There is a foundation beneath it. The walls are able to stand strong because the foundation is solid. What is the use of the walls and foundation without a roof? You can live in a place, only when there is a roof. So too, to lead a happy life and accomplish Self-Realization, you must have Self-confidence as the foundation, Self-satisfaction as the walls and Self-sacrifice as your roof. So first and foremost, develop Self-confidence. Where there is faith, there is love. Where there is love, there is peace. Where there is peace, there is truth. Where there is truth, there is bliss. Where there is bliss, there is God. And where there is God, there is everything. Never forget this principle and develop Self-confidence.