"The Diamond Sutra (Chin-Kang-Ching) or Prajna-Paramita" by Unknown is a Mahayana Buddhist sutra composed between the 2nd and 5th centuries. This influential text presents Buddha's discourse with the monk Subhuti, exploring profound themes of non-self, the emptiness of all phenomena, and liberation without attachment. The work's title invokes the vajra—diamond or thunderbolt—as a metaphor for wisdom that shatters illusions to reveal ultimate reality. Particularly prominent in Chan and Zen traditions, this sutra has inspired countless commentaries and devotional practices across East Asia. (This is an automatically generated summary.)