Mantra - Odaimoku

…Generally, it means the title or heading of a book, but in the Nichiren sect, the five characters of Myoho Renge Kyo or the seven characters of Namu Myoho Renge Kyo are called daimoku or odaimoku, and chanting them, that is, chanting, is at the center of faith and practice. Nichiren believed that the daimoku Myoho Renge Kyo is not just a title, but that it embodies the merits of the Lotus Sutra preached by Shakyamuni, and that by upholding and chanting it, all of Shakyamuni's merits are transferred to one's hands. He called it the daimoku of Honmon, and placed it at the center of his doctrine along with the Honmon's honzon and the Honmon's ordination platform. …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…一般的には書物などの標題や題号を意味するが，日蓮系では，〈妙法蓮華経〉の5字や〈南無妙法蓮華経〉の7字を題目，お題目と称し，これを唱えること，すなわち唱題を信行の中心に据える。日蓮は，〈妙法蓮華経〉という題目は単なる題号ではなく，釈尊の説いた法華経の功徳が凝集していて，これを受持し唱えれば，釈尊のもつすべての功徳が譲り与えられるとして，これを本門の題目と称し，本門の本尊，本門の戒壇とともにその教義の中心に据えた。…

※「お題目」について言及している用語解説の一部を掲載しています。

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