The fifth volume of the Opera Omnia is not a work on historical Buddhism nor on its schools. Panikkar brings us to the heart of the Buddhist faith. The work begins with a reflection on the concept of emptiness and fullness in the Buddhist tradition, compared with the same concept in the Hindu and Christian traditions; continuing with an ancient Buddhist legend as a contrast to the current technological civilization and concluding with a more specific chapter on the interpretation of the silence of the Buddha.