The term "Buddha" means "enlightened one" in Sanskrit. Dharma activities refer to all those who believe in Buddhism, to learn Buddhism, to promote Buddhism, as well as all good deeds and things that liberate sentient beings from sufferings and achieve happiness.
"Avatamsaka Sutra" teaches that all sentient have Buddha nature. The purest nature of all sentient beings is the Buddha-nature, and all have the potential become Buddhas. Buddhist practices are self-benefiting and altruistic. They not only benefit all sentient beings, but can also become a source for one to cultivate a wide field of blessings, gain wisdom, and achieve enlightenment through practice.