Praj??p?ramit? (Sanskrit Praj??p?ramit?; Tibetan sherchin) means 'Perfection of (Transcendent) Wisdom'. Praj??p?ramit? is a central concept in Mah?y?na Buddhism and its practice and understanding are taken to be indispensable elements of the Bodhisattva Path. The practice of Praj??p?ramit? is elucidated and described in the genre of the Praj??p?ramit? s?tras, which vary widely in length and exhaustiveness. The monk Xuanzang returned to China from India with three copies of the Mah?praj??p?ramit? S?tra which he had secured from his extensive travels. Xuanzang, with a team of disciple translators, commenced translating the voluminous work in 660 CE using the three versions to ensure the integrity of the source documentation. Xuanzang was being encouraged by a number of the disciple translators to render an abridged version. After a suite of dreams quickened his decision, Xuanzang determined to render an unabridged, complete volume, faithful to the original of 600 fascicles.