Why is faith?

There is an expansive life-state of profound, secure happiness that transcends any material or social advantage. It is called faith; it is called the life-state of Buddhahood. As Nichiren reminds us: "It is the heart that is important." It is in the heart of faith that Buddhahood resides and boundless and immeasurable happiness shines forth. Happiness is not something located far away. We must realize that it exists within our own lives. Nichiren Buddhism teaches this and shows us how to attain indestructible happiness.

Buddhism Day by Day
Wisdom for Modern Life by Daisaku Ikeda 4/12