Bhante Gunaratana is an internationally recognized author and meditation teacher. Prior to coming to the United States, he spent five years doing in missionary work with the Harijanas (Untouchables) of India and ten years in Malaysia. He has taught in a number of settings, including American University of Washington DC where he served as Buddhist chaplain and the Buddhist Vihara of Washington DC, where he served as president. Bhante G has a strong scholarly background and livelong commitment to dhamma.

In 1985 Bhante G co-founded the Bhavana Society and became its abbot. He continues to teach in the direct, compassionate style that characterizes his books and articles. Bhante G conveys a well-rounded approach to Buddhist Dhamma, touching on all aspects of the Noble Eightfold Path. He emphasizes metta bhavana (the cultivation of loving-friendliness) as a basis for samma-samadhi, or right concentration. As a teacher, he is known for his emphasis both on samadhi and on metta as part of spiritual training.

In 1996, Bhante G received the title of Chief Sangha Nayaka Thera for North America. This acknowledged his status as highest-ranking monk of his sect in the United States and Canada. In 2003, his autobiography, Journey to Mindfulness, was published. In 2005, the Sri Henepola Gunaratana Scholarship Trust was founded under his guidance. This trust provides educations for poverty stricken children in rural Sri Lanka.