He functioned as the Chief Incumbent of International Vipassana Meditation Center of Colombo for 13 years, through which meditation became popular among the Buddhist laymen. He appeared in popular television shows like Doramandalawa in Dhamma discussions and delivered many Dhamma sermons, which were popular among the people. Venerable Harispattuwe Ariyawanshalankara Thera was also a philanthropist who had donated money he received for the benefit of the society rather than his own use. He died in 2014. The funeral was plainly held and even the money collected for the ceremony was used to construct a house for a needy family as the last will of Thera before his death. He was also the chairman of Temperance Movement of Sri Lanka and has written several books on Buddhism.