Tibetan Buddhism is structured on the notion of 'transmission', the passing
on of teachings and methods from the teacher to the student - who in his
turn hands on the teachings to his own students.
This has given rise to a number of 'lineages'; lines of descent of dharma
wisdom from one great master to the next. These masters are often 'reincarnate
lamas', with alternate 'lineage-holders' holding the transmission during
the period from the death of the reincarnate to the coming of age of his