or "single-minded school" is usually viewed as a small, militant offshoot from

Jōdo Shinshū , also known as Shin Buddhism or True Pure Land Buddhism, is a school of Pure Land Buddhism founded by the former Tendai Japanese monk Shinran. Shin Buddhism is the most widely practiced branch of Buddhism in Japan. History Shinran (founder) S ...

Buddhism Buddhism, also known as Buddhadharma and Dharmavinaya, is an Indian religion and List of philosophies, philosophical tradition based on Pre-sectarian Buddhism, teachings attributed to the Buddha, a wandering teacher who lived in the 6th or ...

, though the name has a complex history. Originally, Ikkō-shū was an "obscure band of

Pure Land Pure Land is a Mahayana, Mahayana Buddhist concept referring to a transcendent realm emanated by a buddhahood, buddha or bodhisattva which has been purified by their activity and Other power, sustaining power. Pure lands are said to be places ...

proponents" founded by Ikkō Shunjō in the fifteenth century. He was a disciple of Ryōchū of the Chinzei branch of

Jōdo-shū Jōdo-shū (浄土宗, "The Pure Land School"), is a Japanese branch of Pure Land Buddhism derived from the teachings of the Kamakura era monk Hōnen (1133–1212). The school is traditionally considered as having been established in 1175 and i ...

and similar to Ippen's Ji-shū. However, when the religious and military-political establishment began to crack down on the

Nembutsu file:玉里華山寺 (21)南無阿彌陀佛古碑.jpg, 250px, Chinese Nianfo carving The Nianfo ( zh, t=wikt:念佛, 念佛, p=niànfó, alternatively in Japanese language, Japanese ; ; or ) is a Buddhist practice central to East Asian Buddhism. ...

, little distinction was made between the various factions. Most of Ikkō Shunjo's followers therefore defected to the more powerful Jōdo Shinshū and the name Ikkō-shū ultimately became synonymous with

Rennyo Rennyo (, 1415–1499) was the 8th Monshu (Patriarch) of the Hongan-ji Temple of the Jōdo Shinshū sect of Buddhism, and descendant of founder Shinran. Jodo Shinshu Buddhists often referred to him as the restorer of the sect ( in Japanese). He ...

, the charismatic leader of the Hongan-ji branch of Jōdo Shinshū, responded to this situation by clarifying the positive religious meaning of ''Ikkō'' (single-minded) whilst simultaneously distancing himself from the antinomian behaviour of the original Ikkō sect. In his pastoral letters, known as Ofumi or Gobunsho, he therefore wrote: "It has been established with certainty that our Founder did not particularly name our school the "Ikkō-shū". On the whole, the reason the people call us this is that we place our complete reliance, exclusively, on Amida Buddha ... However, the Founder has specifically named this sect "Jōdo Shinshū". Therefore, you must understand that we of our sect did not originate in any manner or form the name of "One-Mind Sect."

Ikkō-ikki revolts

The Amida pietist movement, and in particular the Jōdo Shinshū, also provided a liberation theology (or

ideology An ideology is a set of beliefs or values attributed to a person or group of persons, especially those held for reasons that are not purely about belief in certain knowledge, in which "practical elements are as prominent as theoretical ones". Form ...

) for a wave of uprisings against the feudal system in late-fifteenth and sixteenth century Japan which are known as the

Ikkō-ikki were armed military leagues that formed in several regions of Japan in the 15th-16th centuries, composed entirely of members of the Jōdo Shinshū sect of Buddhism. In the early phases, these ''ikki'' leagues opposed the rule of local Shugo, go ...

revolts. The causes of this phenomenon are disputed, but may have had both religious and sociopolitical causes. As a consequence of the

revolts and the growing power of the

, the sect's fortress-temples Ishiyama Hongan-ji and Nagashima (built at the end of the 15th century) were eventually destroyed by

Oda Nobunaga was a Japanese ''daimyō'' and one of the leading figures of the Sengoku period, Sengoku and Azuchi-Momoyama periods. He was the and regarded as the first "Great Unifier" of Japan. He is sometimes referred as the "Demon Daimyō" and "Demo ...

's armies. The fortress at Nagashima was razed to the ground in 1574, taking about 20,000 people with it. The Ishiyama Hongan-ji withstood the longest siege in Japanese history before surrendering in 1580. Upon its ruins,

Toyotomi Hideyoshi , otherwise known as and , was a Japanese samurai and ''daimyō'' (feudal lord) of the late Sengoku period, Sengoku and Azuchi-Momoyama periods and regarded as the second "Great Unifier" of Japan.Richard Holmes, The World Atlas of Warfare: ...

built

Osaka Castle is a Japanese castle in Chūō-ku, Osaka, Chūō-ku, Osaka, Japan. The castle is one of Japan's most famous landmarks and played a major role in the unification of Japan during the sixteenth century of the Azuchi–Momoyama period. Layout Th ...

, a replica of which stands on the site today. Following the destruction of Nagashima, Nobunaga ordered his men to search all of

Echizen Province was a Provinces of Japan, province of Japan in the area that is today the northern portion of Fukui Prefecture in the Hokuriku region of Japan. Echizen bordered on Kaga Province, Kaga, Wakasa Province, Wakasa, Hida Province, Hida, and Ōmi Provin ...

and kill every last man and woman of the so-called Ikkō sect. Other Ikkō-shū Buddhists went underground, forming the '' kakure nenbutsu''.

Ikkō-ikki revolts

References

Further reading