Watch VoirFilms. Vajra Sky is a cinematic pilgrimage to central Tibet, bearing witness to the indomitable faith of its Buddhist community and the imminent threat to its very survival. This poignant journey bears witness to the indomitable faith of its endangered Buddhist community and the imminent threat to its very survival. The vastness of the Tibetan sky, reflecting snowy mountains, rushing rivers, and turquoise lakes, leads the journey west. Tibetans respond to the denial of the human right to practice one's religion without interference with a defiant devotion.