Heart Sutra

The Heart Sutra contains 260 words. It expounds the five aggregates, three subjects, four truths, twelve causes and conditions and other concepts, and explains the Buddhist doctrine of the emptiness of self-nature. It is believed that Prajna can overcome all suffering, achieve ultimate nirvana, and achieve the fruit of Bodhi. This idea is considered to be the core of all Prajna doctrine, so it is called the Heart Sutra.