When the canonical teachings are adulterated like milk at a fair, and are on the point of disappearing, (then the terma teachings) will spread. For the Termas are unadulterated and are the swift path of practice. Their many excellent qualities include being powerful and being an easier way to achieve accomplishments. That is why Termas are important.
Tulku Thondup Hidden Teachings The Terma
TraditionWisdom Publications, 1986