The Vipassana-dipani

The Manual of Insight
Mahathera Ledi Sayadaw
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The purpose of Vipassana or the Exercise of Insight is to resolve into the three salient characteristics of Anicca, Dukkha and Anatta the illusory "Soul" (Atta) or imaginary "Self-principle" which from time out of mind has been held to exist in living beings by all Puthujjanas (ordinary unenlightened people) both Buddhist and non-Buddhist.

The fact that a reliable compilation of the materials which one who enters upon the practice of meditation ought to be in possession of before commencing the Practice of Exercises of Insight (vipassana- kammatthana) is much needed by the Buddhists of the West, has been duly taken into consideration by the Venerable Ledi Sayadaw, Aggamahapandita. To supply supply such a need he has written the Vipassana-Dipani (Exposition of Insight).