The Summary of Empowerment is considered to be the only extant portion of the root text of the Kālacakratantra. According to the Buddhist tantric tradition, the Sekkodeśa was transmitted by the Buddha in his emanation as Kālacakra, to Sucandra, the first king of Śambhala. The text’s 174 verses cover a wide range of topics. After a short introduction to the eleven empowerments that constitute a gradual purification of the aggregates, body, speech, mind, and wisdom, the treatise turns to the so-called “sixfold yoga.” It begins by teaching meditation on emptiness via the contemplation of various signs, such as smoke or fireflies. Following the description of the control of winds and drops within the body’s channels and cakras, along with the signs of death and methods of cheating death, the text goes on to describe the three mudrās‍—karmamudrā, jñānamudrā, and mahāmudrā. After a concise criticism of cause and effect, the text concludes by describing six kinds of supernatural beings closely related to the Kālacakratantra, along with their respective families.

The Discourse Appendix Tantra is a moderately long tantra traditionally considered to be an explanatory tantra (vyākyātantra) linked to the Cakrasaṃvara tradition. As such, the text fills in many of the details about practice left out of the root tantra. It explains in more detail important rituals such as mandala construction and initiation ceremonies and goes into much more depth relating deity yoga practices. It describes the deities’ iconography in much more detail, relates their mantras, and also contains, embedded within the text, sadhana-like descriptions of deity yoga visualization practices. It also features body mandala practices quite prominently.

The tantra Emergence from Sampuṭa is an all-inclusive compendium of Buddhist theory and practice as taught in the two higher divisions of the Yoga class of tantras, the “higher” (uttara) and the “highest” (niruttara), or, following the popular Tibetan classification, the Father and the Mother tantras. Dating probably to the end of the tenth century, the bulk of the tantra consists of a variety of earlier material, stretching back in time and in the doxographical hierarchy to the Guhyasamāja, a text traditionally regarded as the first tantra in the Father group. Drawing from about sixteen well-known and important works, including the most seminal of the Father and Mother tantras, it serves as a digest of this entire group, treating virtually every aspect of advanced tantric theory and practice. It has thus always occupied a prominent position among canonical works of its class, remaining to this day a rich source of quotations for Tibetan exegetes.

As its title suggests, this tantra is specifically concerned with the proper interpretation, or “resolution,” of the highly esoteric or “secret” imagery and practices associated with deity yoga in both its development and completion stages as described in the Yoginītantra class of tantras. The work is organized according to a dialogue between the Buddha and Vajragarbha‍—the lead interlocutor throughout many of the Yoginītantras‍—and the Buddha’s responses give particular attention to the specifications of the subtle body completion-stage yoga involving manipulations of the body’s subtle energy channels, winds, and fluids in conjunction with either a real or imagined consort. The tantra sets its interpretation of these common Yoginītantra themes and imagery within the wider context of the four initiations prevalent in this class of tantras. In resolving the secrets connected with each initiation, the text elaborates the different levels of meaning connected with each initiation’s contemplative practices.

Equal to the Sky belongs to a series of texts known as the rali tantras, which are primarily associated with the Cakrasaṃvara system but incorporate themes that are also prominent in the Hevajra and Kālacakra systems. The tantra presents a discourse in which the Buddha addresses three types of ḍākinī, explains their true natures, and correlates them with the practitioner’s physical and subtle body. A primary concern of this text is to explain advanced yogic practices performed during the completion stage (Skt. utpanna­krama/­niṣpanna­krama; Tib. rdzogs rim) in the Yoginī Tantras, but it also treats a wide range of topics including astrology, sacred geography, and tantric hermeneutics. The result is a text which, while very dense and quite difficult to engage with, rewards the reader by bringing together an astonishingly vast range of topics concerning both the theory and practice of Buddhist tantra.

This short tantra, The Fearsome Vajra of Destruction, presents a dialogue between the bodhisattva Vajragarbha and the Blessed One, in which the latter gives detailed explanations of the meanings of the terms that constitute the tantra’s title. The majority of the tantra deals with elucidations of the various aspects of the word vajra, which center on a vajra’s quality of indestructibility and its ability to crush and destroy dualistic concepts.

The Mahāmāyātantra, named after its principal deity Mahāmāyā, is a tantra of the Yoginītantra class in which Mahāmāyā presides over a maṇḍala populated primarily by yoginīs and ḍākinīs. The practitioner engages the antinomian power of these beings through a threefold system of yoga involving the visualization of the maṇḍala deities, the recitation of their mantras, and the direct experience of absolute reality. As well as practices involving the manipulation of the body’s subtle energies, the Mahāmāyātantra incorporates the transgressive practices that are the hallmark of the earlier tantric systems such as the Guhya­samāja­tantra, specifically the ingestion of sexual fluids and other polluting substances. The tantra promises the grace of Mahāmāyā in the form of mundane and transcendent spiritual attainments to those who approach it with diligence and devotion.

Written around the tenth or the eleventh century ᴄᴇ, in the late Mantra­yāna period, The Tantra of Caṇḍa­mahāroṣaṇa represents the flowering of the Yoginī­tantra genre. The tantra offers instructions on how to attain the wisdom state of Buddha Caṇḍa­mahāroṣaṇa through the practice of the four joys. The tantra covers a range of practices and philosophical perspectives of late tantric Buddhism, including the development stage, the completion stage, the use of mantras, and a number of magical rites and rituals. The text is quite unique with its tribute to and apotheosis of women and, in this regard, probably has few parallels anywhere else in world literature. It is written in the spirit of great sincerity and devotion, and it is this very spirit that mitigates, and at the same time empowers, the text’s stark imagery and sometimes shocking practices. This text certainly calls for an open mind.

The Practice Manual of Noble Tārā Kurukullā is the most comprehensive single work on the female Buddhist deity Kurukullā. It is also the only canonical scripture to focus on this deity. The text’s importance is therefore commensurate with the importance of the goddess herself, who is the chief Buddhist deity of magnetizing, in particular the magnetizing which takes the form of enthrallment.

The text is a treasury of ritual practices connected with enthrallment and similar magical acts‍—practices which range from formal sādhana to traditional homa ritual, and to magical methods involving herbs, minerals, etc. The text’s varied contents are presented as a multi-layered blend of the apotropaic and the soteriological, as well as the practical and the philosophical, where these complementary opposites combine together into a genuinely spiritual Buddhist work.

Praise to Tārā with Twenty-One Verses of Homage is a liturgy that consists of twenty-seven verses of praise and reverence dedicated to the deity Tārā. The first twenty-one verses are at once a series of homages to the twenty-one forms of Tārā and a poetic description of her physical features, postures, and qualities. The remaining six verses describe how and when the praise should be recited and the benefits of its recitation.