大方廣圓覺修多羅了義經略疏 1.767

1.767

今初。經文皆云清淨者，謂由前二空觀門簡情顯解，次拂迹滅影，同於行起解絕，故皆清淨為真空矣。故《智論》云：「畢竟空即是畢竟清淨，清淨與空皆絕相義。」若就心說，即如《淨名經》「妄想是垢，無妄想是淨」等，故云清淨。文中七：一、內身根識。

Now, the first. The sūtra text repeatedly says 'pure' because through the preceding two contemplation gates of emptiness, emotional grasping is eliminated and understanding is revealed, and then by sweeping away traces and extinguishing reflections, it coincides with the arising of practice and severance of understanding; hence all are purified into true emptiness. Therefore the Mahāprajñāpāramitopadeśa says: 'Ultimate emptiness is precisely ultimate purity; both purity and emptiness have the meaning of severing marks.' If spoken of in terms of the mind, it is as the Vimalakīrtinirdeśa-sūtra says, 'Deluded thinking is defilement, non-deluded thinking is purity,' and so forth; hence it is called 'pure.' Within the text there are seven sections: first, the internal sense faculties and consciousnesses of the body.