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This study examined the effects of meditation on mental imagery, evaluating Buddhist monks' reports concerning their extraordinary imagery skills. Practitioners of Buddhist meditation were divided into two groups according to their preferred meditation style: Deity Yoga (focused attention on an internal visual image) or Open Presence (evenly distributed attention, not directed to any particular object). Both groups of meditators completed computerized mental-imagery tasks before and after meditation. Their performance was compared with that of control groups, who either rested or performed other visuospatial tasks between testing sessions. The results indicate that all the groups performed at the same baseline level, but after meditation, Deity Yoga practitioners demonstrated a dramatic increase in performance on imagery tasks compared with the other groups. The results suggest that Deity meditation specifically trains one's capacity to access heightened visuospatial processing resources, rather than generally improving visuospatial imagery abilities.

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Great treatise on the stages of mantra (Sngags rim chen mo): (critical elucidation of the key instructions in all the secret stages of the path of the victorious universal lord, Great Vajradhara) : chapters XI-XII, the creation stage (2013, Book)

Thomas F. Yarnall

<p>Publisher's description: Tsong Khapa’s Great Treatise on the Stages of Mantra (Sngags rim chen mo)—considered by the present Dalai Lama to be one of Tsong Khapa’s two most important books (along with his Lam rim chen mo)—is his masterful synthesis of the principles and practices of all four classes of Tantra, which formed the basis of his innovation in creating the esoteric “Tantric College” institution and curriculum in the early fifteenth century. With detailed reference to hundreds of works from the Tibetan Kangyur and Tengyur, the chapters presented and studied in this volume concern his treatment of the creation stage (bskyed rim) meditations of Unexcelled Yoga Tantra. This includes a detailed analysis emphasizing how and why such creation stage practices—utilizing deity yoga to transform death, the between, and life into the three bodies of buddhahood—are indispensible to creating a foundation for successfully entering the culminal yogic practices of the perfection stage. (A subsequent volume will present the perfection stage chapters of this essential masterwork.) An important work for both scholars and practitioners, this annotated translation is supplemented with extensive support materials. A companion volume of the critically edited Tibetan text—annotated with the found quotes from Tengyur and Kangyur texts in Tibetan (and Sanskrit where available)—also will be published in a limited edition, and as an e-book.</p>

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