"And thus it has been elsewhere: There is the superior fixed attention (dharana) for him-viz., if he presses the tip of the tongue down the palate, and restrain the voice, mind, and breath, he sees Brahman by discrimination (taraka). And when, after the cessation of mind, he sees his own Self, smaller than small, and shining as the Highest Self, then, having seen his Self as the Self, he becomes Self-less, and because he is Self-less, he is without limit, without cause, absorbed in thought. This is the highest mystery--viz., final liberation " (Maitr. Upanisad, vi. 20). Amrtab. Upanisad, 18, describes three modes of sitting-namely, the Lotus-seat (Padmasana), the sitting with legs bent underneath; the mystic diagram seat (Svastika); and the auspicious-seat (Bhadrasana);--while Yogacikha directs the choice of the Lotus-posture, with attention concentrated on the tip of the nose, hands and feet closely joined. But Brahmanic Zen was carefully distinguished even by early Buddhists[FN#16] as the heterodox Zen from that taught by the Buddha. Our Zen originated in the Enlightenment of Shakya Muni, which took place in his thirtieth year, when he was sitting absorbed in profound meditation under the Bodhi Tree. [FN#16] The anonymous author of Lankavatara-sutra distinguishes the heterodox Zen from the Hinayana Zen, the Hinayana Zen from the Mahayana Zen, and calls the last by the name of the Buddha's Holy Zen. The sutra is believed by many Buddhists, not without reason, to be the exposition of that Mahayana doctrine which Acvaghosa restated in his Craddhotpada-castra. The sutra was translated, first, into Chinese by Gunabbadra, in A.D. 443; secondly, by Bodhiruci in A.D. 513; and, thirdly, by Ciksanada in A.D. 700-704. The book is famous for its prophecy about Nagdrajuna, which (according to Dr. Nanjo's translation) is as follows: "After the Nirvana of the Tathagata, There will be a man in the future, Listen to me carefully, O Mahatma, A man who will hold my law. In the great country of South, There will be a venerable Bhiksu The Bodhisattva Nagarjuna by name, Who will destroy the views of Astikas and Nastikas, Who will preach unto men my Yana, The highest Law of the Mahayana, And will attain to the Pramudita-bhumi."