《易經》艮卦「艮」之本義傳統上都以注視解之，引申為it是指目視之所注 it。本文則認為艮之本義或當為不見，引申的it義是說因不見而目視為之it，艮 卦六爻皆有抑it之義可證。戰國時期之《易傳》其解義轉趨多元，別有明出處之 1 寺土」義，講修養之「精白」義，言天道之1 冬始」義。爾後《周易》已成為 士人普遍嫻熟的經典，有志之士莫不借《周易》來建構、發揮自家的思想。就艮 it一義的闡釋而言，玄學家「土於无」，佛教「it於空」，道教「it於黑」，而 理學家「it於理」，名家輩出，蔚為壯觀，經典的注說充分反映出時代思潮的脈 動和多元的面貌。

The traditional denotation of gen(艮）of the hexagram Bound in Yl Jlng is “gaze”， and the extended meaning is “stillness”，keeping the gaze still. However, this paper considers that the denotation of gen(艮）possibly should be “invisible”，and the extended meaning “stillness” means that keeping the gaze still because “invisible”. All the six lines on the hexagram Bound have the meaning of restraint. The explanations in Yl Chuan during the Warring States period became more diverse; it had other more meanings such as timely restraining, purity and sincerity of cultivation, completion and beginning of natural law in the Ming Dynasty. Thereafter, Zhouyi had become a classic which literati were generally familiar with. No one aspiring literatus didn’t construct and develop their own ideas by Zhouyi. As far as the meaning of stillness of g合n(艮）is concerned, Metaphysician rests only in “nothing，，； Buddhist rests only in “emptiness”； Taoist rests only in “vitality”； Neo-Confucianist rests only in “reason”. It was very spectacular that famous experts came forth one after another. Annotation of classics fully reflected the pulsation of an ideological trend of the era and various aspects.