About Tibetan monasticism

Although there were many householder-yogis in Tibet, monasticism was the foundation of Buddhism in Tibet. There were over 6,000 monasteries in Tibet. However, nearly all of these were ransacked and destroyed by Red Guards during the Cultural Revolution. Most of the major monasteries have been at least partially re-established, while many others remain in ruins.
A leaf from a Prajñāpāramitā (Perfection of Wisdom) manuscript.

Tibetan Buddhist practices – Schools, sutras & tantras

Apart from classical Mahāyāna Buddhist practices like the six perfections, Tibetan Buddhism also includes tantric practices, such as and the as well as methods which are seen as transcending tantra, like . In Tibetan Buddhism, practices are generally classified as either Sutra (or Pāramitāyāna) or Tantra ( or Mantrayāna), though exactly what constitutes each category and what is included and excluded in each is a matter of debate and .