What are the actions of great bodhisattvas?

All of you are chanting for the happiness of many members—children of the Buddha—in your respective communities; you support and encourage them and work tirelessly on their behalf as if they were your own children. Your actions are truly those of great bodhisattvas; your state of life that of noble Buddhas.

For Today and Tomorrow
Daily Encouragement by Daisaku Ikeda 28/1

The five characters of Myoho-renge-kyo are the blessings brought by the Bodhisattvas of the Earth,disciples of the Buddha in his true identity

The function of fire is to burn and give light. The function of water is to wash away filth. The winds blow away dust and breathe life into plants, animals, and human beings. The earth produces the grasses and trees, and heaven provides nourishing moisture. The five characters of Myoho-renge-kyo are also like that. They are the cluster of blessings brought by the Bodhisattvas of the Earth, disciples of the Buddha in his true identity. -Nichiren

Wisdom for Modern Life by Daisaku Ikeda 21/3