A collection of three important esotheric texts: The Sutra of the Vow (Taisho 243) depicts an ideal being, Vajrasattva, in its universal drama and offers a pathway to transformation and salvation; in its Japanese version, this text is used extensively in the Shingon tradition. The Matanga Sutra (Taisho 1300) presents the story of Prakiti and her love for the monk, Ananda, told in the present, in the karma of the past, and in the insights of the Buddha. The Bodhicitta Sastra (Taisho 1665), while brief, remains one of the most important sastras in the Shingon school of Esoteric Buddhism.