Happiness is to be found in the vibrant dynamism of your own life as you struggle to challenge and overcome one obstacle after another

Happiness doesn't exist on the far side of distant mountains. It is within you, yourself. Not you, however, sitting in idle passivity. It is to be found in the vibrant dynamism of your own life as you struggle to challenge and overcome one obstacle after another, as you clamber up a perilous ridge in pursuit of that which lies beyond.

Wisdom for Modern Life by Daisaku Ikeda 18/3

What is the wonderful means of putting an end to the physical and spiritual obstacles of all living beings?

The wonderful means of truly putting an end to the physical and spiritual obstacles of all living beings is none other than Nam-myoho-renge-kyo. 10/12

From the Writings of Nichiren Daishonin
The Wonderful Means of Surmounting Obstacles

Happiness is transcending all opposition and obstacles and continuing to grow

Without opposition there is no growth. It is hard to argue with that logic. A state in which we are free from problems or constraints is not happiness. Happiness is transcending all opposition and obstacles and continuing to grow.

Events
6 Sept 1957: President Josei Toda makes a declaration against the use of nuclear weapons.