THUS HAVE I HEARD. The Blessed One once appeared in the Castle of Lanka which is on the summit of Mt. Malaya in the midst of the great Ocean. A great many Bodhisattva-Mahasattvas had miraculously assembled from all the Buddha-lands, and a large number of bhikshus were gathered there. The Bodhisattva-Mahasattvas with Mahamati at their head were all perfect masters of the various Samadhis, the tenfold Self-mastery, the ten Powers, and the six Psychic Faculties. Having been anointed by the Buddha's own hands, they all well understood the significance of the objective world; they all knew how to apply the various means, teachings and disciplinary measures according to the various mentalities and behaviors of beings; they were all thoroughly versed in the five Dharmas, the three Svabhavas, the eight Vijnanas, and the twofold Egolessness. The Blessed One, knowing of the mental agitations going on in the minds of those assembled (like the surface of the ocean stirred into waves by the passing winds), and his great heart moved by compassion, smiled and said: In the days of old the Tathagatas of the past who were Arhats and fully-enlightened Ones came to the Castle of Lanka on Mount Malaya and discoursed on the Truth of Noble Wisdom that is beyond the reasoning knowledge of the philosophers as well as being beyond the understanding of ordinary disciples and masters; and which is realisable only within the inmost THEN SAID MAHAMATI the Bodhisattva-Mahasattva: O blessed One, Sugata, Arhat and Fully-enlightened One, pray tell us about the realisation of Noble Wisdom which is beyond the path and usage of the philosophers;Discrimination