About Sitting-in-the-bed

Sitting-in-the-bed is a major religious ceremony in Tibetan Buddhist temples. It is a necessary ceremony for the reincarnated person to formally succeed the living Buddha by the reincarnated soul boy and change the name during the inheritance process of the living Buddha.
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 .