Excerpt About Vajra Body
The vajra is regarded as the symbol of highest spiritual power which is irresistible and invincible. It is therefore compared to the diamond, which is capable of cutting asunder any other substance; but which itself cannot be cut by anything. Likewise the properties of preciousness—nay, of supreme value—of changelessness, purity and clarity, were further reasons why in Buddhism the vajra was equated with the diamond. This is expressed in such terms as "Diamond Throne" (vajrasana), for the place on which the Buddha attained enlightenment, "Diamond Saw" (vajracchedika) for one of the most profound philosophical scriptures of the Mahayana, which ends with the words: "This sacred exposition shall be known as Vajracchedika-prajnaparamita-sutra—because it is hard and sharp like a diamond, cutting off all arbitrary conceptions and leading to the other shore of "Enlightenment."