The number of men who actually achieved the ideal and lived their lives by it was high. An early term for warrior, "uruwashii", was written with a kanji that combined the characters for literary study ("bun" 文) and military arts ("bu" 武), and is mentioned in the Heike Monogatari (late 12th century). The Heike Monogatari makes reference to the educated poet-swordsman ideal in its mention of Taira no Tadanori's death:

Friends and foes alike wet their sleeves with tears and said,

What a pity! Tadanori was a great general,
pre-eminent in the arts of both sword and poetry.

In his book "Ideals of the Samurai" translator William Scott Wilson states: "The warriors in the Heike Monogatari served as models for the educated warriors of later generations, and the ideals depicted by them were not assumed to be beyond reach. Rather, these ideals were vigorously pursued in the upper echelons of warrior society and recommended as the proper form of the Japanese man of arms. With the Heike Monogatari, the image of the Japanese warrior in literature came to its full maturity." Wilson then translates the writings of several warriors who mention the Heike Monogatari as an example for their men to follow.

Plenty of warrior writings document this ideal from the 13th century onward. Most warriors aspired to or followed this ideal otherwise there would have been no cohesion in the samurai armies.[8]