Wikipedia about: Vipassana Thinking
Vipassanā is a Pali word from the Sanskrit prefix "vi-" and verbal root paś. It is often translated as "insight" or "clear-seeing," though, the "in-" prefix may be misleading; "vi" in Indo-Aryan languages is equivalent to the Latin "dis." The "vi" in vipassanā may then mean to see into, see through or to see 'in a special way.'
Henepola Gunaratana defined Vipassanā as:}}
Although Theravada and Mahayana are commonly understood as different streams of Buddhism, their practice however, may reflect emphasis on insight as a common denominator:}}}}
The emphasis on insight is discernible in the emphasis in Chán on sudden insight, though in the Chán-tradition this insight is to be followed by gradual cultivation.
Relation with samatha
In the Theravada-tradition two types of meditation Buddhist practices are being followed, namely samatha (Pāli; Sanskrit: śamatha; "calm") and vipassana (insight). Samatha is a primary meditation aimed at calming the mind, and it is also being used in other Indian traditions, notably Raja yoga.
Contemporary Theravada orthodoxy regards samatha as a preparation for vipassanā, pacifying the mind and strengthening the concentration in order to allow the work of insight, which leads to liberation. In contrast, the Vipassana Movement argues that insight levels can be discerned without the need for developing samatha further due to the risks of going out of course when strong samatha is developed. For this innovation the Vipassana Movement has…