also known as was an early Heian period and poet. Little is known about his life other than that he lived in Ujiyama.
When Ki no Tsurayuki wrote the of the Kokinshū, he selected Kisen as one of the whose work was to be considered as superior. Tsurayuki says the following to comment on Kisen's work.ことばかすかにして 始め終り たしかならず。 kotoba kasuka ni shite hajime wohari tashikanarazu. (note: exact transcription using classical kana orthography) The use of words is a delicate thing—from start to end it does not express the thing that actually is. いはば、 秋の月を見るに、 暁の雲に あへるが ごとし。 ihaba, aki no tsuki wo miruni, akatsuki no kumo ni aheru ga gotoshi. That is to say, to speak of the autumn moon, one compares it to the clouds at dawn.
Kisen is sometimes said to be the author of the poetry collection (also known as the ), but it is probably apocryphal and created well after the end of the Heian period.
The following two of Kisen are the only poems that can be confidently traced back to him.わが庵は都の辰巳しかぞすむ世を宇治山と人はいふなり waga iho ha miyako no tatsumi shika zo sumu yo wo ujiyama to hito ha ifu nari Loosely: People say that I am a secluded hermit living in Ujiyama, but my hermitage is just to the southeast of the capital! ( Kokinshū 18:983; also in the Ogura Hyakunin Isshu) 木の間より見ゆるは谷の蛍かもいさりに海人の海へ行くかも ki no ma yori miyuru ha tani no hotaru kamo isari ni ama no umi he yuku kamo Loosely: What I see through the trees seems to be the from the valley—or is that the of the fishermen as they head to the sea? ( Gyokuyōshū 400)