The Sutra of the Heart of Transcendent Knowledge--The Heart Sutra, as it is commonly known--is the most widely chanted Buddhist sutra, worldwide. A condensation of the very much longer Prajnaparamita Sutra of 8,000 lines, it is a pith Mahayana Buddhist teaching which includes the famously paradoxical phrase "form is emptiness, emptiness also is form." It was a favorite of Kurt's and often introduced to his classes during his 40 years of teaching. The full text is available.
