Vajrayana — The Diamond Vehicle
Vajrayana (the diamond vehicle) is the Tantric form of Buddhism that arose in India and was preserved in Tibet — the fastest and most direct path to Buddhahood, using sophisticated visualization, mantra, and energy practices.
Vajrayana (vajra = thunderbolt/diamond, yana = vehicle) is the tantric form of Buddhism that developed in India from approximately the 5th century CE and was transmitted to Tibet primarily in the 8th-11th centuries CE. It is called the diamond vehicle because vajra (the thunderbolt/diamond) represents the quality of consciousness being cultivated — indestructible, clear, and capable of cutting through all delusion. Vajrayana works with three tools: the body (through mudra and physical practice), speech (through mantra), and mind (through visualization and samadhi). The theoretical basis is that all phenomena — including the defilements of greed, hatred, and delusion — are themselves expressions of primordial wisdom (yeshe), and that by working with rather than against these energies, the practitioner transforms them into enlightenment qualities far faster than the gradual path. The Nyingma, Kagyu, Sakya, and Gelug schools of Tibetan Buddhism all preserve authentic Vajrayana lineages.
The diamond mind cannot be cut, cannot be burned, cannot be washed away — it is the primordial nature of all beings.
Vajrayana, the 'diamond vehicle,' claims to compress the Mahayana path to buddhahood into a single lifetime through deity yoga, mantra, and the completion-stage practices of the subtle body.
Bardo Thodol