The Perfection of Wisdom in One Hundred Thousand Lines is the longest of all the Prajñāpāramitā sūtras and fills no fewer than twelve volumes of the Degé Kangyur. Like the other two long sūtras, it is a detailed record of the teaching on the perfection of wisdom that the Buddha Śākyamuni gave on Vulture Peak in Rājagṛha, setting out all aspects of the path to enlightenment that bodhisattvas must know and put into practice, yet without taking them as having even the slightest true existence.

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The Perfection of Wisdom in Twenty-Five Thousand Lines is among the most important scriptures underlying both the “vast” and the “profound” approaches to Buddhist thought and practice. Known as the “middle-length” version, being the second longest of the three long Perfection of Wisdom sūtras, it fills three volumes of the Kangyur. Like the two other long sūtras, it records the major teaching on the perfection of wisdom given by the Buddha Śākyamuni on Vulture Peak, detailing all aspects of the path to enlightenment while at the same time emphasizing how bodhisattvas must put them into practice without taking them‍—or any aspects of enlightenment itself‍—as having even the slightest true existence.

The Perfection of Wisdom in Eighteen Thousand Lines is one version of the Long Perfection of Wisdom sūtras that developed in South and South-Central Asia in tandem with the Eight Thousand version, probably during the first five hundred years of the Common Era. It contains many of the passages in the oldest extant Long Perfection of Wisdom text (the Gilgit manuscript in Sanskrit), and is similar in structure to the other versions of the Long Perfection of Wisdom sūtras (the One Hundred Thousand and Twenty-Five Thousand) in Tibetan in the Kangyur. While setting forth the sacred fundamental doctrines of Buddhist practice with veneration, it simultaneously exhorts the reader to reject them as an object of attachment, its recurring message being that all dharmas without exception lack any intrinsic nature.

The sūtra can be divided loosely into three parts: an introductory section that sets the scene, a long central section, and three concluding chapters that consist of two important summaries of the long central section. The first of these (chapter 84) is in verse and also circulates as a separate work called The Verse Summary of the Jewel Qualities (Toh 13). The second summary is in the form of the story of Sadāprarudita and his guru Dharmodgata (chapters 85 and 86), after which the text concludes with the Buddha entrusting the work to his close companion Ānanda.

While dwelling at Vulture Peak near Rāja­gṛha, the Buddha sets in motion the sūtras that are the most extensive of all‍—the sūtras on the Prajñā­pāramitā, or “Transcendent Perfection of Wisdom.” Committed to writing around the start of the first millennium, these sūtras were expanded and contracted in the centuries that followed, eventually amounting to twenty-three volumes in the Tibetan Kangyur. Among them, The Transcendent Perfection of Wisdom in Ten Thousand Lines is a compact and coherent restatement of the longer versions, uniquely extant in Tibetan translation, without specific commentaries, and rarely studied. While the structure generally follows that of the longer versions, chapters 1–2 conveniently summarize all three hundred and sixty-seven categories of phenomena, causal and fruitional attributes which the sūtra examines in the light of wisdom or discriminative awareness. Chapter 31 and the final chapter 33 conclude with an appraisal of irreversible bodhisattvas, the pitfalls of rejecting this teaching, and the blessings that accrue from committing it to writing.

This sūtra takes the form of a series of dialogues between the Buddha Śākyamuni, Subhūti, Śāriputra, and others such as Indra, the king of gods, and a Goddess of the Ganges, and as well as setting out the teachings on emptiness as such it describes the path and practices that a bodhisattva should take to integrate this understanding of phenomena and finally realize it. A special feature of this particular sūtra are the inspirational narratives of Sadāprarudita and his quest for the teachings on the Perfection of Wisdom from the Bodhisattva Dharmodgata, contained in the final three chapters.

The Perfection of Wisdom “Kauśika” is a condensed prajñāpāramitā sūtra in which the Buddha summarizes the various meanings of the perfection of wisdom. In particular, the Buddha equates the characteristics of the perfection of wisdom with the characteristics of all phenomena, the five aggregates, the five elements, and the ten perfections. In this way, the sūtra places particular emphasis on the nonduality of conventional phenomena and emptiness.

In this famous scripture, known popularly as The Heart Sūtra, the Buddha Śākyamuni inspires his senior monk Śāriputra to request instructions from the bodhisattva Avalokiteśvara on the way to practice the perfection of wisdom. Avalokiteśvara then describes how an aspiring practitioner of the perfection of wisdom must first understand how all phenomena lack an intrinsic nature, which amounts to the realization of emptiness. Next, Avalokiteśvara reveals a brief mantra that the practitioner can recite as a method for engendering this understanding experientially. Following Avalokiteśvara’s teaching, the Buddha offers his endorsement and confirms that this is the foremost way to practice the perfection of wisdom.

The Sūryagarbha Perfection of Wisdom is a condensed prajñāpāramitā sūtra in the form of a dialogue between the Buddha and the bodhisattva Sūryaprabhāsa, who asks the Buddha how bodhisattvas skilled in means should train themselves in the perfection of wisdom. In response, the Buddha explains that a bodhisattva should train in a meditative stability called the sun or the sun skilled in means, elaborating upon the qualities of this meditative stability using the analogy of the sun in terms of seven qualities. He then further describes the training of the bodhisattva in the perfection of wisdom as training concerning the true nature of all phenomena, which is characterized in familiar terms found in the long prajñāpāramitā sūtras. It is also described in terms of the various designations for ultimate truth. Finally, the Buddha enumerates the characteristics of the one who trains in the perfection of wisdom, ending with a verse of instruction.

The Candragarbha Perfection of Wisdom is a condensed prajñāpāramitā sūtra that takes the form of a dialogue between the Buddha and the bodhisattva Candragarbha. In response to Candragarbha’s question about how bodhisattvas should train themselves in the perfection of wisdom, the Buddha declares that the perfection of wisdom lies in the understanding that all phenomena are devoid of entities, using the analogy of the moon to clarify the meaning of this declaration. Candragarbha then asks the Buddha how many kinds of perfection of wisdom exist for bodhisattvas. The Buddha answers by describing two types of perfection of wisdom, “contaminated” and “uncontaminated,” and he elucidates the nature of the perfection of wisdom with reference to the ultimate nature of all phenomena. At the end of this discourse, the Buddha presents a mantra of the perfection of wisdom, followed by a summary verse.

In a retreat place in Magadha, the Buddha Śākyamuni and the bodhisattva Samantabhadra, surrounded by many bodhisattvas, perform miracles in a meditative absorption. The bodhisattva Samantabhadra asks the Buddha to distinguish between two levels of the perfection of wisdom. In response, the Buddha gives definitions of these two levels. This sūtra is one of the short prajñāpāramitā sūtras, and it belongs especially to the category related to the five bodhisattvas: Sūryagarbha, Candragarbha, Samantabhadra, Vajrapāṇi, and Vajraketu. Despite its brevity, it echoes other sūtras that feature the figure of Samantabhadra and the distinguishing of two types of wisdom.