Ven. Pomnyun Sunim's Dharma talks are clear and straightforward. He has an exceptional ability to explain the Buddha's teachings in simple, contemporary language. As a result, his spoken and written messages help each of his followers to redirect their gaze inward in self-reflection. The esoteric content of Buddhist sutras are brought to life thanks to his wisdom, intuition, and insight.

As of January 2025, YouTube videos of Sumin's Dharma talks have had more than 1.7 billion views. He shares his wisdom about how to free oneself from suffering and how to become happy through his Dharma Q&As and the Happiness School program. To date, he has delivered more than 12,000 Dharma Q&As in South Korea and about 300 Dharma Q&As in other countries around the world, including the 115 talks he gave during his global tour in 2014. Also, since the Covid-19 pandemic began in 2020, Ven. Pomnyun Sunim has been interacting with hundreds of thousands of people through his weekly online Dharma Q&As in Korean, and biweekly talks in English. Among the more than 50 books Ven. Pomnyun Sunim has published in Korean so far, the most notable are Things Are Good as They Are Now, Buddha and Commentary on the Diamond Sutra.

Based on the idea that practice at the individual level goes hand in hand with social engagement, Ven. Pomnyun Sunim has engaged in extensive peace initiatives for various causes, including a peaceful unification of the Korean Peninsula, refugee support, international relief efforts and interfaith reconciliation and cooperation. Throughout the years, he has received numerous awards in recognition for his efforts. In 2002, he received the Ramon Magsaysay Award for Peace and International Understanding, and he was presented the 37th Niwano Peace Prize in 2021.