the tradition which follows gampopa is called dakpo kagyu. a key mahāmudrā author of this tradition is dakpo tashi namgyal, well known for his "mahāmudrā: the moonlight." karma kagyu karmapas like the ninth karmapa wangchuk dorje also composed important mahāmudrā texts. a development of these later mahāmudrā writers is the integration of the common mahayana teachings on samatha and vipasyana as preliminaries to the practice of mahāmudrā.