Deep in the monasteries and hermitages of the Tibetan Buddhist tradition, a small number of yogis have spent decades practicing techniques rarely shown outside their own lineages. This film gathers on-camera interviews with several of them, along with demonstrations of tummo, the inner-heat practice that lets practitioners dry wet cloths on their bodies in freezing conditions, filmed as direct evidence rather than reenactment. The yogis explain their training, their teachers, and the philosophy behind practices most Westerners have only read about in secondhand accounts, speaking through translators in modest rooms and outdoor retreats. The project has an explicit preservation motive: many of these lineages survived the destruction of Tibetan monastic culture only through individual teachers who are now old, and the filmmakers treat the interviews as a record that might not be possible to make again. The result plays less like an exposé and more like an archive, letting the yogis describe their own practice in their own terms and on camera doing what they claim to be able to do.