The Vipassanā movement, also called the Insight Meditation Movement, refers to a number of branches of modern Theravāda Buddhism which stress insight into the three marks of existence as the main means to attain awakening and become a stream-enterer.
It finds its origins in modernist influences on the traditions of Burma, Laos, Thailand and Sri Lanka, and the innovations and popularizations by Theravāda teachers as Mahasi Sayadaw ("New Burmese Method"), Ledi Sayadaw (the Ledi lineage), Anagarika Munindra and Pa Auk Sayadaw as well as nonsectarian derivatives from those traditions such as the movement led by the late S. N. Goenka (with his co-teacher wife Illaichi Devi) who studied with teacher Sayagyi U Ba Khin.
The vipassanā movement includes contemporary American Buddhist teachers such as Joseph Goldstein, Tara Brach, Gil Fronsdal, Sharon Salzberg, Ruth Denison and Jack Kornfield.
The vipassanā movement emphasizes the use of vipassanā to gain insight into the three marks of existence as the main means to attain wisdom and eventually awakening. According to Lance Cousins the primary source of the Insight meditation movement's practice "is the commentarial writings of Buddhaghosa, particularly the Visuddhimagga."