Our Power-Full VOW as Boddhisattvas of the Earth

In The New Human Revolution, Daisaku Ikeda's lifetime record of the Soka Gakkai's history, he writes about the vow of the Boddhisatva of the Earth...(each one of us). This passage is from volume 24, chapter 2. 

"The essential characteristic of a Boddhisatva is his or her vow. The vow of the Bodhisattvas of the Earth is to propogate the Lotus Sutra. That's why wholeheartedly chanting to realize our vow of bringing happiness to all around us is important. Strictly speaking, chanting nam-myoho-renge-kyo without the vow is not the prayer of the Boddhisatva of the Earth." 

The Bodhisattva vow brims with the Buddha's life force, enabling one to triumph over devilish functions. 

Shini'ichi (Daisaku Ikeda's pen name in the novel) wanted every single member to experience great benefits. He wanted them to overcome all forms of suffering such as illness and poverty, and become happy. The vow to achieve kosen-rufu is the key to fulfilling such prayers. 

We all have various problems and sufferings. Our dedication to kosen-rufu is crucial to surmounting them. For example, if someone suffering from illness vows to overcome that illness to gain the strength and life-force to freely take action for kosen-rufu, and demonstrate the power of their Buddhist practice to others, the vow will bring forth immense strength to overcome that illness. 
Chanting Nam-myoho-renge-kyo of course results in benefits. But when the prayer "I want to overcome my illness" is infused with a deep sense of mission, we experience a fundamental transformation within our lives, within our state of being and that vow triggers a powerful momentum to change our karma.  When we chant in earnest based on a vow to achieve kosen-rufu the life state of the Boddhisattvas of the Earth manifests itself within us, the life state of Nichiren Daishonin begins to pulse within us, and we are able to manifest our innate Buddhahood,  This is a revolution of our state of life, and it makes possible a dramatic transformation of our karma. 

In addition, when we chant and strive to promote Buddhism and succeed in our struggles for the sake of kosen-rufu, we are already manifesting the the life state of the Boddhisatvas of the Earth. Through practicing this way, each individual is able to overcome and solve his or her personal problems. 

When the bright sun of the life state of the Boddhisatvas of the Earth rises within, the darkness of sufferings is dispelled, and one is able to walk boldly and bravely along the path to happiness." 

From The New Human Revolution, Volume 24, Chapter 2 by Daisaku Ikeda