Heart Sutra Talks

The Heart Sūtra is a popular sūtra in Mahāyāna Buddhism. In Sanskrit, the title Prajñāpāramitāhṛdaya translates as "The Heart of the Perfection of Wisdom". It is traditionally associated with the Bodhisattva Avalokiteśvara (commonly known in East Asian Buddhism as Guanyin), who is the interlocutor of the sūtra.

The sūtra famously states, "Form is emptiness (śūnyatā), emptiness is form." It has been called "the most frequently used and recited text in the entire Mahayana Buddhist tradition." The text has been translated into English dozens of times from Chinese, Sanskrit, and Tibetan, as well as other source languages.

From Heart Sutra on Wikipedia