In the context of Ippen Shōnin Eden, explain the Emakimono arts of the Background.

Originating in Japan in the sixth or seventh century through trade with the Chinese Empire, emakimono art spread widely among the aristocracy in the Heian period. An emakimono consists of one or more long rolls of paper narrating a story through yamato-e texts and paintings. The reader discovers the story by progressively unrolling the scroll with one hand while rewinding it with the other hand, from right to left (according to the then horizontal writing direction of Japanese script), so that only a portion of text or image of about 60 cm (24 in) is visible. The narrative assumes a series of scenes, the rhythm, composition and transitions of which are entirely the artist's sensitivity and technique. The themes of the stories were very varied: illustrations of novels, historical chronicles, religious texts, biographies of famous people, humorous or fantastic anecdotes, etc.The Kamakura period (12th–14th century), which followed a period of unrest and civil war, was marked by the arrival in power of the warrior class (the samurai). This politically and socially unstable period provided fertile ground for Buddhism to proselytize, whether through the depiction of the sutras, or by illustrated accounts of the lives of illustrious monks. Under the impetus of the new warrior class in power and the new Buddhist sects, artistic production was very sustained and the themes and techniques were even more varied than before, signalling the "golden age" of emakimono (the 12th and 13th centuries).The Ippen Shōnin Eden fits into this context. Biographies of monks (kōsōden-e or eden) were very popular at the time of the Kamakura, that theme being favoured by the emergence of many Pure Land Buddhist schools.
Kamakura period samurai Buddhism sutra yamato-e Ippen Heian period horizontal writing direction of Japanese script emakimono left Emakimono