The Stories of the Lotus Sutra, p247[W]e should devote our whole selves to the Dharma, to the Truth. This is the most important meaning of “burning our bodies.” Does it mean abandoning the bodhisattva practice of service to others in order to serve the Dharma? Of course not. It is by serving the Dharma that we serve both others and ourselves. Serving the Dharma and serving others cannot be separated, just as serving others cannot be completely separated from serving ourselves. This integration of interests – in contrast with Western individualism and with certain Christian ideas of completely selfless devotion and sacrifice – is one of the great insights of Buddhism.
Let your practice be a light for others, helping them to dispel the darkness. This is a second symbolic meaning of “burning” our bodies or arms.