Pañcarātra (English spelling) Pancaratra

...However, what characterizes this period is the rise and prosperity of philosophical schools or sects closely related to Hindu sects. From around the 7th century, the Shaivism school was established in South India, and in the 9th century, the Kashmir Shaivism and other Shaivism sects were established, as well as the Vaishnavism sects such as the Bhāgavata and Pancharātra sects from quite ancient times. Furthermore, this period also saw the establishment and development of Tantrism, which is characterized by its affirmation of the present world, its identification with the macrocosm and the microcosm, and its worship of the female principle Shakti....

*Some of the terminology explanations that mention "Pañcarātra" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…しかしこの時代を特徴づけているのは，ヒンドゥー教の諸宗派と密着した哲学学派ないし宗派の興起と隆盛である。7世紀ころから南インドにシバ聖典派，9世紀にはカシミール･シバ派などのシバ教諸派，またかなり古くからバーガバタ派Bhāgavata，パンチャラートラ派Pañcarātraなどのビシュヌ教諸派も成立する。さらに現世を肯定し大宇宙と小宇宙との同一視，女性原理シャクティ崇拝を特徴とするタントリズムの成立･展開もこの時代である。…

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出典｜株式会社平凡社世界大百科事典 第２版について | 情報